Outlook 2010 not starting

Outlook 2010 not starting DEFAULT

FIX: Outlook won&#;t open [Windows 10 &#; Mac]

Milan Stanojevic
by Milan Stanojevic

Windows & Software Expert

Milan has been enthusiastic about PCs ever since his childhood days, and this led him to take interest in all PC-related technologies. Before joining WindowsReport, he worked as a front-end web developer. Read more

  • If Outlook won't open in Windows 10 it's frustrating because you can't check your emails.
  • The Outlook not opening Windows 10 problem can be solved by using a different email client.
  • You might also disable the add-ins from Outlook as instructed in one of our solutions.
  • If Outlook won't start, you can also use a command in Windows 10 Run app as shown below.
how to fix Outlook won&#;t open
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Microsoft Outlook is one of the most used email clients on the Windows 10 platform with millions of users worldwide.

Unfortunately, many users reported that Outlook won&#;t open on Mac or on their Windows 10 PC. Are you one of the unfortunate users saying: My Outlook won&#;t open?

This can be a problem especially if you use Microsoft Outlook frequently, so let’s see how to fix it using our complete guide below.


What can I do if Microsoft Outlook will not open?

  1. Try an alternative email client
  2. Start Outlook in Safe Mode and disable add-ins
  3. Create a new profile
  4. Repair your Outlook data file
  5. Use the /resetnavpane command if Outlook won&#;t open
  6. Make sure that Outlook isn’t running in Compatibility mode
  7. Use Microsoft Support and Recovery Assistant
  8. Change the DPI settings
  9. Log out of iCloud
  10. Use the New Email Message option
  11. Use a separate password for Outlook
  12. Try using an older version of Outlook
  13. Change the way you close Outlook
  14. Try to send any file with Outlook
  15. Delete Outlook App Data folder
  16. Check if you have permissions to access your PST file
  17. Run the sfc /scannow command
  18. Delete the registry key
  19. Remove the VPN software

1. Try an alternative email client

If your Outlook won&#;t open, perhaps it&#;s time you changed the email client altogether since there are many great alternatives available that can replace it.

Our suggestion in this particular case would be Mailbird. Currently, Mailbird is one of the most popular email clients and also one of the best email apps for Windows

The tool comes extremely handy, syncing all your emails and contacts from multiple accounts in one unified Inbox. Plus, it brings a lot of easy-to-set customizable features and options to serve the mentioned purpose.

Users praise Mailbird for the minimalist user interface, its low impact on the system, plus the ease to use a lot of convenient shortcuts.

Mailbird

Mailbird

Use Mailbird to benefit from seamless, lightweight emailing experience that brings all your email accounts to one place.

DownloadVisit website

2. Start Outlook in Safe Mode and disable add-ins

Start Outlook in Safe Mode

  1. Press Windows Key + R, enter Outlook /safe, and press Enter or click OK.
    outlook-will-not-open-run-safe-1
  2. When Choose Profile window opens, click OK.
  3. If you’re asked to enter a password, be sure to enter it and click Accept.

Disable add-ins

  1. In Outlook choose File > Options > Add-ins.
  2. In View and manage Office Add-ins, make sure that the Manage box shows COM Add-ins and choose Go.
  3. Remember the list of all enabled add-ins in the Available Add-ins section and disable all the selected add-ins by clearing the checkboxes. Click OK.
  4. Now close Outlook.

Start Outlook and enable the add-ins

  1. Press Windows Key + R and enter outlook. Press Enter or click OK.
  2. Choose File > Options > Add-ins and enable one or more add-ins on the list.
  3. Close Outlook and restart it.
  4. Enable another add-in and repeat the Outlook restart cycle. Perform this step until you find the problematic add-in and keep it disabled.

Many users love using add-ins to enhance Outlooks functionality, but sometimes add-ins can create certain problems and prevent Outlook from starting.

Since you’re not able to start Outlook normally, your only solution is to start Outlook in Safe Mode and disable the add-ins as instructed above.

According to some users, the problem was Microsoft CRM Add-in, and after disabling it the issue was resolved.

Outlook won&#;t open in safe mode?  Few users reported that they were unable to do so when using the Outlook /safe command.

If you’re having the same problem, be sure to enter the full path to the outlook.exe file in the Run dialog.

Instead of Outlook /safe, you should use the following command:

Keep in mind that the path to outlook.exe might be different on your PC, so double-check if before you use this command.


Outlook starts only on Safe Mode? Don&#;t panic, you&#;ll have it running smoothly with these fixes!


3. Create a new profile

  1. Start the Mail app from Windows
  2. Click the Show Profiles button and choose Add.
  3. Enter the name of the new profile.
  4. Enter your name, email address, and password and click the Next button. This method will set up all the necessary email settings manually. If you want, you can also choose the option to manually set up your Outlook profile.
  5. Click Finish and the new profile should be added to the General tab in the Mail dialog. Select Prompt for a profile to be used option and choose OK.
  6. Start Outlook and from the dropdown list select the new profile that you just created. Click OK.

Your Outlook profile keeps all your Outlook settings, but if for some reason your profile gets corrupted, you might experience this problem while starting Outlook.

If everything works without any problems with your new Outlook profile, you can now switch back to the original Outlook profile and check if the problem is completely fixed.


4. Repair your Outlook data file

Scan your Outlook data file

  1. Go to your Office installation folder and run SCANPST.EXE.
  2. Click the Browse button and select your Outlook data file.
  3. Click the Start button to scan your data file.
  4. If any errors are found click the Repair button to repair them.

Delete the files from Microsoft Exchange

  1. Go to Control Panel and select Mail.
  2. When the Mail window opens, select E-mail Accounts.
  3. Go to the Data Files tab, select the Exchange account, and choose Open File Location.
  4. A new Explorer window will open. Close the Mail window and switch back to the Explorer window. Locate the data file and delete it.

If you use Microsoft Exchange, you can simply delete your data file and it will be recreated again.

After deleting the file, it will be created again with Microsoft Exchange once you start Outlook.

All your Outlook email messages, contacts, tasks, and events are stored in your data file. Sometimes the data file can get corrupted and that can prevent Outlook from opening.

Speaking of the Outlook data file, there are many reasons why it can&#;t be accessed. We have an extensive guide on how to solve these issues.

For a quick fix to the problem, you need to repair your data file by following the steps above.


5. Use the /resetnavpane command if Outlook won&#;t open

  1. Make sure that Outlook is completely closed.
  2. Press Windows Key + R, enter outlook.exe /resetnavpaneand press Enter to run it.
    outlook-will-not-open-run-1

If Outlook won&#;t open on your Windows 10 PC, you might be able to fix it by running /resetnavpane command.

By running this command you’ll remove all customization related to the navigation pane, and sometimes that can fix this problem with Outlook.


6. Make sure that Outlook isn’t running in Compatibility mode

Compatibility mode is designed to run older software on Windows 10 that usually wouldn’t run natively. Outlook is fully optimized for Windows 10, therefore there’s no need to use Compatibility mode.

In fact, if you have Compatibility Mode turned on for Outlook, you can sometimes cause this issue to appear, therefore it’s advised to turn Compatibility mode off for Outlook.

To do that, simply right click the Outlook shortcut and choose Properties from the menu.

Go to the Compatibility tab and make sure that Run this program in compatibility mode option isn’t turned on. Click Apply and OK to save changes.


7. Use Microsoft Support and Recovery Assistant

Sometimes you can fix Outlook errors simply by running the Microsoft Support and Recovery Assistant tool.

This tool is designed to fix common problems with Office tools and in order to fix those problems, you just need to download it, run it and let it fix the problem for you.


Issues are still common with Microsoft Office? Our comprehensive guide is what you need!


8. Change the DPI settings

  1. Right-click your desktop and choose Display Settings.
    outlook-will-not-open-display-1
  2. When the Display Settings window opens, move the slider all the way to the left until it says %.
    outlook-will-not-open-display-2
  3. After that, log out of Windows 10 and log back in. Try to start Outlook and check if the problem is resolved.

Few users reported that you can fix the problem with Outlook simply by changing the DPI scaling to %.

Few users reported that they managed to fix this problem simply by lowering the display scaling to DPI from DPI, so you might want to try that as well.


9. Log out of iCloud

iCloud is a popular cloud storage service created by Apple, but unfortunately, this cloud service can cause some issues with Outlook.

If Outlook won&#;t open, you just need to log out of iCloud and log back in and you should be able to start Outlook without any problems.


Looking for a cloud storage app? Look no further! Here are the best ones you can find!


Use the New Email Message option

  1. Press Ctrl + Shift + Esc to start Task Manager.
  2. When Task Manager starts, in the Process tab locate the Outlook process and click the End Task button.end task outlook

Before you try this method, you have to close Outlook completely. We suggest to use Task Manager to close Outlook by following the steps above:

Speaking of Task Manager, a lot of users prefer the tool from Windows 7. For that, we have a complete guide on how to bring the Windows 7 Task Manager to Windows

After you close Outlook, locate Outlook in Start Menu and click the right arrow next to it to open its Jump List.

You can also right-click Outlook on your Taskbar to reveal its Jump List. Select New Email Message or New Meeting or any other option. A new window will now open.

After that, right-click Outlook and choose the Run as administrator option. Outlook should now start without any problems.

Some users are also suggesting changing the File open on start option while using this method.

Simply select the New Email message from the Jump List and when Outlook opens go to Settings, selectAdvanced and change File open on start to Outbox.

Restart Outlook and change File open on start to Inbox. Save changes and the problem should be resolved.


Use a separate password for Outlookchange outlook password

Users reported that you need to use a separate password for your Outlook account if you use 2 step verification with your Gmail account.

To fix this problem simply generate a digit App password that you will use with Outlook. After using the new password with Outlook, the issue should be resolved.

Some users are also suggesting to remove your Gmail account from Outlook as a potential workaround, so you might want to try that.


Too many passwords to remember? Keep them safe with these password manager tools!


Try using an older version of Outlookuse an older version of outlook to fix current verion

Users reported that Outlook won&#;t open on their PC, but one suggested workaround is to use an older version of Outlook with your PST file.

If you have an older version of Outlook available, you can use your PST file with it without any problems.

All your emails will be imported and you can continue where you left off. This isn’t a permanent solution, but it’s a useful workaround.

If that doesn&#;t work, you can try using a different email client as mentioned in the first solution. There are many free alternative mail clients that will do perfectly as an Outlook replacement.


Change the way you close Outlookchange the way you close outlook

This is another workaround, but users reported that it works for them. Apparently, you can stop this error simply by choosing the File > Exit option to close Outlook.

According to users, this error appears if you use the X button to close Outlook, therefore instead of closing Outlook with the X button, try closing it by clicking File and selectExit.

Users reported that this workaround works for them, so you might want to give it a try.


Try to send any file with Outlook

Users reported that they are getting stuck on a Processing screen while trying to start Outlook. One suggested a workaround that might work for you is to try sending any file using Outlook.

To do that, start Outlook and you should get stuck on the Processing screen.

After that happens, open File Explorer and right-click on any file and choose to Send To &#; Mail Recipient. After doing that, a new email window will open along with Outlook.


Delete Outlook App Data folder

Delete the Outlook folder

  1. Make sure that Outlook is completely closed.
  2. Press Windows Key + R and enter %localappdata%.
    outlook-will-not-open-local-appdata-1
  3. Navigate to Microsoft folder.
  4. Locate the Outlook folder and delete it.
  5. Try to start Outlook again.

According to users, you can fix the problem with Outlook simply by deleting the Outlook AppData folder.

If Outlook manages to start, all the deleted files will be recreated and the problem should be completely resolved.


Delete the outlook.xml file

  1. Press Windows Key + R and enter %appdata%. Press Enter.
  2. Go to the Microsoft Outlook folder, locate outlook.xml file and delete it.

Some users are also suggesting to delete outlook.xml file, and you can do that by following the steps above.


Check if you have permissions to access your PST file

  1. Locate your PST file, right-click it and choose Properties from the menu.
  2. Go to the Security tab and check if your username is available in the Group or user names section. If it’s not, click the Edit button.
    outlook-will-not-open-permissions-1
  3. Now click the Add button to add a new user.
    outlook-will-not-open-permissions-2
  4. In the Enter the object names to select field, enter your user name, and click Check Names.
  5. If your user name is valid, click OK to add it.
    outlook-will-not-open-permissions-3
  6. Select your user name from the Group or user names section and click on Full Control in the Allow column.
    outlook-will-not-open-permissions-4
  7. Click Apply and OK to save the changes.

Outlook holds all your information in a PST file, but if you don’t have the necessary permissions to access this file, you might encounter certain errors.

In the worst-case scenario, Outlook won’t be able to open on your PC.

Fortunately, you can fix this problem simply by changing your security permissions. This is a simple procedure and you can do it by following the steps above.

After gaining full control over your PST file, you should be able to start Outlook without any problems.


Need a full guide on how to open PST files? We got your back!


Run the sfc /scannow command

  1. Type cmd in Windows search and click on Run as administrator from the right pane to open Command Prompt with full privileges.
  2. When Command Prompt opens, enter the following command and press Enter (The scanning process will now start, so be sure not to cancel it or interrupt it):
  3. After the scan is completed, check if the problem with Outlook is resolved.

If your files are corrupted, you might not be able to start Outlook at all, but fortunately, you fix this problem by performing an SFC scan.

This is a simple command that will scan and repair your system, and you can perform it by following the steps above.


Delete the registry key

  1. Press Windows Key + R and enter regedit.
    outlook-will-not-open-regedit-1
  2. In the left pane, navigate to the following path and expand it:
  3. Select Profiles key, right-click it, and choose Delete.
  4. After doing that, restart your PC and check if the problem is resolved.

You can sometimes fix the problem with Outlook simply by deleting a specific key from your registry.

Before making any changes to the registry, we strongly advise you to back up your registry in case anything goes wrong.


Remove the VPN software

remove vpn to fix outlook

VPN tools are useful if you want to protect your privacy while surfing the Internet, but VPN tools can interfere with Outlook and cause this and many other problems to appear.

Users are suggesting disabling or removing your VPN software and check if that fixes the problem.


Alternatively, you can choose another VPN from our list of best tools available on the market!


Another suggestion from one of our readers is to end the Outlook process from the Background processes section in Task Manager. It won&#;t hurt to try that out to fix this issue.

Not being able to start Outlook can be a big problem, especially if you use Outlook as your default email client, but you can easily fix this problem by using one of our solutions.


Frequently Asked Questions

Sours: https://windowsreport.com/outlook-will-not-open-windows/

Outlook doesn’t start, crashes or shows Not Responding

Outlook Doesn't Start buttonGetting Outlook to work again properly when experiencing startup errors, crashes or hangs (Not Responding in the Title Bar) often is not that hard but it does require some specific knowledge about the inner workings of Outlook.

This guide explains all you need to know about that in order to get your Outlook to start without errors again.

Note:
Aside from solving problems with starting Outlook, this guide can also be used as a base to troubleshoot other common Outlook issues.

Windows 10 Upgrade:
If you are having difficulties with starting Outlook after you upgraded to Windows 10, see the guide: Windows 10 and Outlook and more specifically the section PST File access is denied.

We&#;ll start off this guide with 3 easy questions. Depending on the answers, you could possibly skip large portions of this guide or even directly get a solution to your startup issue.


Is Outlook up-to-date?

Update Now buttonJust to make sure you are not trying to troubleshoot an issue which has already been solved, before you begin verify that you have installed all updates for your version of Outlook.

Also note that Outlook and Outlook are no longer supported versions of Outlook and may have compatibility and security issues with Windows 10 which will no longer be addressed.

Solution:
When you are using an MSI-based installation of Outlook or previous, you can configure Microsoft Update to also check for Office updates.
When you use a Click-to-Run based installation of Outlook , Outlook , Outlook or Microsoft , then you can manually check for updates via the Update Options button that is show by going to File-> Office Account in Outlook. Fixes for known issues and bugs in Outlook are released on a monthly basis.

Did it ever work?

Did it work before? buttonDid Outlook still work correctly the last time you used it? If so, you probably can skip this solution. If it never worked before or if you are starting Outlook for the very first time, it could very well be that you have not configured your mail account correctly. A common mistake is choosing for an Exchange account while in fact you are using a POP3 or IMAP account.

Solution:
At this point, it is often easiest to recreate your mail profile via the Mail applet in Control Panel. When recreating the mail profile, make sure you&#;re using the correct server settings provided by your ISP or corporate email administrator. An overview of the settings from some of the largest free email account providers can be found here.

Does Outlook still work for other users on the computer?

Other Users buttonIf you share this computer with another user, you can ask this other user to logon and ask to verify if Outlook is still working for him or her. If you are the only user of this computer, then you could also add another user to Windows just for testing purposes via the User Accounts applet in Control Panel or the Accounts section in the Settings app on Windows

Solution:
If it doesn&#;t work for another user on the computer either, then the issue is most likely caused by a faulty add-in or a damaged Outlook/Office installation.
If it works for another user on the computer or you have no way to check this, continue to the next step in this guide.


Safe Mode

Safe Mode buttonIf Outlook worked correctly the last time and nothing has changed about your account configuration, then checking if things work correctly in Safe Mode is a good first step. Starting Outlook in Safe Mode will prevent some or all add-ins from being loaded, prevents several settings files from being loaded and turns off the Reading Pane.

To start Outlook in Safe Mode you&#;ll need to start Outlook with the &#;safe&#; switch;

  • Windows 7
    Start-> type;
  • Windows 8
    Start Screen-> type;
    (just start typing, a search box will automatically become visible)
  • Windows 10
    Start-> type;
    (just start typing, a search box will automatically become visible or type in the command in the Cortana Search box)
  • All Windows versions
    Hold the CTRL button when clicking on the Outlook button to start it. You will get prompted whether you want to start Outlook in Safe Mode.

When typing, please note the space between and .
For alternative methods of starting Outlook in Safe Mode see this Quick Tip.

Starting Outlook in Safe Mode from the Start Menu or Search feature in Windows
Starting Outlook in Safe Mode from the Start Menu or Search feature in Windows

Solution:
If it works in Outlook Safe Mode, the issue is most likely caused by an add-in, a corrupted settings file or the first message that is being displayed when Outlook is started. See the next 3 troubleshooting steps below for further analysis of the issue. If it doesn&#;t work in Safe Mode either, the next 3 steps will probably not help you either to solve it and you can continue with scanning your pst-file for errors.

Cannot open the Outlook window

Folder Pane buttonIf you get the error &#;Cannot open the Outlook window&#; when trying to start Outlook, the error usually indicates that your Folder Pane or Navigation Pane settings holds a corruption.

Solution:
Start Outlook with the resetnavpane switch;

  • Windows 7
    Start-> type;
  • Windows 8
    Start Screen-> type;
    (just start typing, a search box will automatically become visible)
  • Windows 10
    Start-> type;
    (just start typing, a search box will automatically become visible or type in the command in the Cortana Search box)

When typing, please note the space between and .
If you encounter this issue more often, see this Quick Tip to find a more definitive solution.

Cannot open the Outlook window
The &#;Cannot open the Outlook window&#; error can be fixed quite easily.

Reset dat-files

Extend.dat and Outcmd.dat buttonIf you are using Outlook or previous, Outlook stores several settings in dat-files which get loaded upon startup. These files sometimes get corrupted and renaming them to could get you back into Outlook then. Outlook and later do no longer use these files so if you are using Outlook or later, you can skip this step.

Solution:
Reset and by renaming them to when Outlook is closed. You can find them in the locations below;

  • extend.dat
    • This file keeps the settings of installed Exchange Client Extensions add-ins and their status.
  • outcmd.dat
    • This file contains your Toolbar customizations.

Tip!
If you are having trouble locating these folders you can also use OutlookTools (free!)

Disable add-ins

Add-Ins buttonIf Outlook works in Outlook Safe Mode but resetting your dat-files did not help, then the issue is most likely caused by an add-in.

Often, but not always, this is accompanied by an error similar to:

&#;The add-in <reference to add-in> could not be installed or loaded. This problem may be resolved by using Detect and Repair on the Help menu. Unable to load <reference to add-in dll>.&#;

The instructions given in the error will seldom actually fix this issue as the issue is more likely to be caused by the add-in itself, rather then by an Outlook installation issue.

Solution:
Start Outlook in Safe Mode again and disable all your add-ins. After this, you can start Outlook normally again and see if it works now. If so, you can enable them one by one until Outlook fails to load again. The add-in you last enabled is most likely the cause of your issue. Uninstall or reinstall this add-in or check with the vendor for updates or contact them for further troubleshooting their add-in.

You can enable/disable Outlook add-ins in the following locations;

  • Outlook
    Tools-> Trust Center…-> section Add-Ins
  • Outlook / / / / Microsoft
    File-> Options-> section Add-Ins

For more detailed instruction on how to enable or disable add-ins see this Quick Tip.
If you you get an error that you cannot disable the add-in see this Quick Tip instead.

Tip!
Virus scanners which integrate themselves with Outlook are known to cause a lot of issues. Uninstalling this part of your virus scanner is strongly advised; you&#;d still be sufficiently protected by your on-access scanner part of the virus scanner. For more details see this Quick Tip.

Use scanpst.exe to fix Outlook Data File errors

ScanPST.exe buttonWhen you use a pst-file, it could be that an issue with that pst-file is preventing Outlook from starting correctly.

Often this issue is accompanied by the message;

&#;Errors have been detected in the file <path to pst-file>. Quit all mail-enabled applications, and then use the Inbox Repair Tool.&#;

Solution:
Use scanpst.exe to scan the mentioned pst-file for errors. The location of scanpst.exe depends on your version and language of Outlook.

  • Microsoft / Outlook / Outlook Click to Run
  • Outlook (MSI-based Volume License installation)
    bit Windows:
    bit Windows:
    bit Outlook:  
  • Outlook
    bit Windows:
    bit Windows:
    bit Outlook:
    Click to Run:
  • Outlook
    bit Windows:
    bit Windows:
    bit Outlook:
  • Outlook
    bit Windows:
    bit Windows:

When the scan is done and errors have been fixed, run scanpst.exe again until no errors are found anymore. If after scanning the file more than 3 or 4 times errors are still found, you might want to copy over your data in a new pst-file.

Inbox Repair Tool - scanpst.exe
Use the Inbox Repair Tool (scanpst.exe) to scan your pst-file for errors.

Tip!
If you are having trouble locating scanpst.exe you can also use OutlookTools (free!).
 
For a step-by-step guide on how to work with scanpst.exe see Using the Inbox Repair Tool (scanpst.exe).

Recreate your mail profile

Mail Applet buttonWhen your mail profile is damaged, Outlook often fails to start as well or you&#;ll find yourself encountering one error after the other.

Solution:
Recreate you mail profile via the Mail applet in Control Panel. You can first add a new mail profile without deleting or otherwise affecting your current configuration just to see if it will indeed solve your issue. If so, you can easily migrate your Outlook data file from the broken mail profile to the newly created one. This process is described in detail in this guide.

Overview mail profiles
It&#;s quite normal to only have 1 mail profile for Outlook ;-)

Run a Repair, Office Diagnostics or reinstall Office/Outlook

Repair Office buttonWhen reaching this point of the guide, the issue most likely also occurs for other users on the computer. This means that the issue is not caused by a configuration setting but by an installation error.

Solution:
By running a Repair, Office Diagnostics or by reinstalling Office/Outlook you can probably resolve this issue. Note that during this process no files or settings of Outlook or other applications will be removed but it will of course never hurt making a backup of your Outlook data before you continue.

Depending on your version of Office/Outlook and/or Windows, you&#;ll have several of the following options available to you to start one of the above processes;

  • Control Panel-> Add/Remove Programs…
  • Control Panel-> Uninstall a Program
  • Windows Start-> Settings-> Apps
  • Insert the Office CD/DVD-> run Setup.exe-> choose Repair or uninstall Office completely and then install it again.

Tip!
After running any of the above processes, make sure you check for updates again to verify that all updates have been installed.

If the uninstall process fails, you can manually uninstall Office from your computer or use the Office Uninstall Support Tool (OffScrub.exe).

Check the Event Viewer and post in the Outlook forum for further help

Event Viewer buttonIf, after trying all of the above solutions, Outlook still doesn&#;t start, it seems that common troubleshooting steps do not apply to your system and more information about your configuration and issue is needed.

Solution:
Open the Event Viewer and look at the Application Log for any error events that are registered by Outlook or happened at the time that you tried to open Outlook. Copy this error message and post it together with a short description of your system (think about; Outlook version, Windows version, type of e-mail account and add-ins you are using) in one of the Outlook Forums.

Tip!
For a short intro about how to access and read the Event Viewer in Windows, see this Quick Tip.

Sours: https://www.howto-outlook.com/faq/outlookdoesntstart.htm
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Hi John,

When the Outlook program itself will not open, it can be caused by several issues. It can be a corrupt or damaged PST File, a corrupted Outlook profile or an issue with the application. Let us follow the steps below to isolate the issue:

1. Disable add-ins:


         a. In the upper-left corner of Outlook, choose File > Options > Add-ins.
         b. At the bottom of the View and manage Office Add-ins, make sure the Manage box shows COM Add-ins, and then choose Go.
         c. As a precaution, when the COM Add-ins listing of your current add-ins opens, do one of the following:

              -Manually record the title of every selected add-in listed under Available Add-ins.
              -Take a screenshot of the property sheet and save the image to a location of your choice.

         d. After you've captured the titles of the selected add-ins, clear all selected check boxes, and then choose OK. Click a check box to clear it. Don't select an add-in and choose Remove. If you have administrator rights, you could actually delete the add-in. For this troubleshooting exercise, you want to disable, not delete, an add-in.
         e. Choose File > Exit.

2. Run the /resetnavpane command. The navigation pane is the leftmost pane in Outlook where you'll find your folder list and the icons to move between Mail, Calendar, People, and Tasks. Running the /resetnavpane command removes all customizations to the navigation pane.

        a. Close Outlook.

        b. Choose Start > Run.
        c. In the Open box, type Outlook.exe /resetnavpane, and then choose OK.

3. Check if there is an available update for your Office. Check this link for detailed steps.

Once done, confirm if you will be able to open your Outlook app.

Let us know the result of the suggested steps.

Thank you.

3 people found this reply helpful

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I performed all of the steps you listed. I even ran scanpst.  But same result. I can only open Outlook in safe mode.  Any ideas?

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Thank you for letting us know the result. Since it still doesn't work, let us perform some other steps. Please follow the instructions below:

1. Check if Outlook is running in compatibility mode. Compatibility mode is designed to help a program run on an older operating system. If Outlook is running in compatibility mode, you can turn that off and see if it fixes the problem.

          a. Find the Outlook.exe file on your computer. you can find this file in C:\Program Files\Microsoft Office\Office 14\ or C:\Program Files (x86)\Microsoft Office\Office 14\.

         b. Right-click the Outlook.exe file, choose Properties, and then choose the Compatibility tab.

         c. If any of the boxes on the Compatibility tab are checked, uncheck them, then choose Apply > OK.

         d. Restart Outlook.

2. Repair Office app. Detailed steps are provided on this link.

Let us know if there's any difference.

Thank you.

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Still no joy.  I ran the office repair same results

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Thank you for getting back to us and apologize for the delayed response. Kindly check if the steps below will work on your end:

1. Close all the Outlook instances.
2. Right-click the shortcut which you use to open Outlook.
3. Right-click on "Microsoft Outlook " and choose "Properties".
4. Under tab called "Shortcut", change window size to "Maximized" beside “Run”.
5. Start Outlook again.

Let us know how it turns out for you.

Thank you.

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Windows Update ran over the weekend and now Outlook is working normally.  Thanks for all of you help! It was greatly appreciated!!

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Sours: https://answers.microsoft.com/en-us/msoffice/forum/all/outlookwill-not-open/bdab36f-b
Outlook (Bit, Click-to-Run Installation) \Program Files (x86)\Microsoft Office\root\Office16 Outlook (Bit, Click-to-Run Installation) \Program Files\Microsoft Office\root\Office16 Outlook (Bit, MSI-based Installation) \Program Files (x86)\Microsoft Office\Office16 Outlook (Bit, MSI-based Installation) \Program Files\Microsoft Office\Office16 Outlook (Bit, Click-to-Run Installation) \Program Files (x86)\Microsoft Office 15\root\office15 Outlook (Bit, Click-to-Run Installation) \Program Files\Microsoft Office 15\root\office15 Outlook (Bit, MSI-based Installation) \Program Files (x86)\Microsoft Office\Office15 Outlook (Bit, MSI-based Installation) \Program Files\Microsoft Office\Office15 Outlook (Bit) \Program Files (x86)\Microsoft Office\Office14 Outlook (Bit) \Program Files\Microsoft Office\Office14
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2010 not starting outlook

Outlook is an excellent full-featured, powerful and reliable email client from Microsoft. However, there may be times when you may experience issues with Outlook not being able to load or open, which can be confusing and frustrating. 

In this guide, we’ll show you some simple and more advanced troubleshooting solutions that can help you get Outlook back up and running quickly.  

Why Outlook Will Not Open

There are several reasons why Outlook might not load or work correctly. These reasons include: 

  • Issues with the Outlook service
  • Internet connectivity issues
  • A bug in the app, which requires an update
  • Issues with app updates
  • Outdated or defective add-ins
  • Defective or faulty Outlook PST file
  • A corrupted profile
  • Issues with the navigation pane

How to Fix When Outlook Won’t Open 

Whatever the reason for Outlook not opening on your device, there are several simple and advanced troubleshooting steps you can use to fix Outlook issues. After each step, try to open Outlook and check if it works again. 

1. Quick Fixes

  • Check whether Outlook works on a different device. 
  • Create another user account on your device and check if it helps. 
  • Make sure Outlook can access your calendar, and check if your device’s date/time and country/region information is correct. 
  • Make sure you’re using the correct server settings that your IT administrator or ISP has provided. Configure Outlook using a POP3 or IMAP account instead of an Exchange account.
  • If Outlook keeps crashing on your Android or iOS device, clear the browser’s cache. Remove the Outlook app and reinstall it.

2. Enable Work Offline

The Work Offline option allows you to access mail that you’ve saved before Outlook stopped working.

Open Outlook and check for the Working Offline status at the bottom of the window. If you don’t see Work Offline, it means the feature is disabled. 

To enable Work Offline on your Windows PC, select Send/Receive > Work Offline.

For Mac, select Outlook on the menu bar and then select Work Offline.

3. Update Outlook 

By default, Outlook installs updates automatically, but you can manually enable or disable these updates via your Office Account settings. You can also check for available updates and install the latest one on your device.

  1. To enable automatic updates for Outlook, select File > Office Account.
  1. Select Update Options and then select Enable updates in the drop-down menu.
  1. To check for and apply updates manually to Outlook, select File and then select Office Account in the navigation pane.  
  2. Select Update Options > Update Now
  1. To update Outlook on your Mac, select Help from the menu bar, and then select Checkfor updates
  1. Select Update to download and install any pending updates. 

Note: For older Outlook versions that don’t have the Office Account option, select File > Help > Check for Updates and install the update. 

4. Check Outlook Mail Server Settings

Check your mail server settings to be sure nothing has changed that would affect how Outlook works.

  1. Select File > Account Settings > Account Settings
  1. Next, select your email and then select Change

Note: If you use Gmail, Yahoo, iCloud, work-provided email address, custom domain email address, Outlook.com or email addresses that end with @live.com, @msn.com or @hotmail .com, you can’t edit the settings directly. In such cases, Windows manages these settings for you so you can skip this step.

5. Start Outlook in Safe Mode

Safe Mode helps you start Outlook without add-ins, which could be in conflict with the app. This way, you can tell whether the add-in is the cause of the problem or not. 

  1. Select Start > Run, type Outlook /safe, and then select OK.
  1. Accept the default Outlook setting in the Choose Profile dialog box and then select OK
  1. Enter your password if prompted and then select Accept. You’ll see the Safe Mode label next to your email address when Outlook is in Safe Mode. 

If Outlook works when in Safe Mode, disable all your add-ins and then restart the app. 

  1. To disable add-ins in Outlook, select File > Options > Add-ins.
  1. Check whether the Manage box at the bottom of the View and Manage Office Add-ins shows COM Add-ins.
  1. Select Go.
  1. If the COM Add-ins listing opens, take a screenshot of the property sheet and save the image or record each selected add-in listed under Available Add-ins. Once this is done, clear all the selected check boxes and then select OK
  1. Select File > Exit, right-click Start > Run, type Outlook in the box and press Enter.  
  2. Next, select File > Options > Add-ins

Re-enable the add-in you want by selecting the box next to it and repeat this step until you have re-enabled all the original add-ins and found the source of the error. 

Sometimes the error could be caused by more than one add-in. 

6. Create a New Profile

Your Outlook profile contains your Outlook settings. If the profile is corrupted, you can create a new profile and make it the default profile used when Outlook starts. 

  1. In Windows, select Start > Control Panel, search for Mail and select it.
  1. Select Show Profiles.
  1. Select Add in the Mail Setup – Outlook dialog box.
  1. Type the name you want to use for the new profile in the Profile Name box.
  1. In the Add Account Wizard, fill in Your Name, Email address and Password under Email Account on the Auto Account Setup page.
  1. Select Finish and you’ll find your new profile’s name added in the Mail dialog box under the General tab. 
  2. Next, select Prompt for a profile to be used under When starting Microsoft Outlook, use this profile and then select OK
  3. Restart Outlook and select the new profile name you created in the drop-down list in the Choose Profile dialog box. Select OK and check if Outlook starts normally with the new profile name.

Note: Back up your data files before removing your old profile because selecting Remove means all your offline cached content will be deleted. 

7. Repair Outlook Data Files

Occasionally, some of the data (PST) files Outlook stores may become corrupted. You can use the scanpst.exe (Inbox Repair Tool) to scan your data files and repair errors. 

See our in-depth guides on what to do when Outlook can’t access data files and how to repair an Outlook PST file that’s damaged or corrupted.

8. Remove Navigation Pane Customizations

The navigation pane displays your folder list and icons to move. You can run the /resetnavpane command to remove all customizations to the navigation pane and check whether Outlook still won’t open. 

Close Outlook, select Start > Run, and type Outlook.exe /resetnavpane. Select OK.

9. Check if Outlook is Running in Compatibility Mode

Compatibility mode makes it easier for you to run programs on older operating systems. 

If Outlook is running in compatibility mode, disable it and check whether it works properly again.

Note: This step applies to Outlook and versions; Outlook doesn’t have the Compatibility tab.

  1. Find the Outlook.exe file on your computer by going to C:\Program Files\Microsoft Office\Office 14\ or C:\Program Files (x86)\Microsoft Office\Office 14\ on Outlook or C:\Program Files\Microsoft Office\Office 15\ or C:\Program Files (x86)\Microsoft Office\Office 15\ for Outlook  
  2. Right-click the file and select Properties > Compatibility tab.
  1. Uncheck any boxes that are checked on the Compatibility tab and then select Apply > OK. Restart Outlook and see if Outlook opens normally again.

Rebuild the Outlook Database (Mac)

If you’re using Outlook on a Mac and the app won’t open, rebuild the Outlook database using the Microsoft Database Utility to fix the problem. Before rebuilding the database, check whether the problem is caused by a fragmented or damaged hard disk and then run the Apple Disk Utility to diagnose and repair hard disk problems.

Note: You can’t manually repair or rebuild a database in Outlook for Mac. The application does this automatically for you. 

Before rebuilding the Outlook database, make sure you have at least 20MB of free disk space, which is needed to rebuild or compact the database.

  1. Open Outlook and select Outlook > Turn Off Office Reminders
  1. Quit all Microsoft Office apps including Outlook and quit Messenger for Mac.
  2. Close Outlook, hold down Option key and select the Outlook icon in the Dock to open the Microsoft Database Utility.  
  3. Select the identity of the database you want to rebuild and then select Rebuild.

Note: Before the Database Utility rebuilds a database, it will create a backup copy of the database with the date and time the backup was created. You can find this backup in the /Users/ username/Documents/Microsoft User Data/Office Identities/ folder.

  1. Restart Outlook once the database rebuilding process is completed.

Get Outlook Up and Running Again

We hope this guide has helped you open Outlook again to access your mail and other documents. If you’re experiencing syncing issues in Outlook, our Outlook App Not Syncing guide will help you with that. 

Share with us what worked for you by leaving a comment below.

Sours: https://helpdeskgeek.com/office-tips/microsoft-outlook-wont-openways-to-fix/
FIX!! Outlook Not opening, Responding, Stopped working Outlook 2010, 2013,2016,2019

What To Do When Microsoft Outlook Won't Open

When you select the Microsoft Outlook program from the Start menu or a shortcut icon, but Outlook won't open, the right fix depends on what you experience as well as the version of Microsoft Outlook that is installed.

Causes of Outlook Not Opening

Several issues could cause Outlook to open incorrectly or not at all. Some common culprits include:

  • Problematic add-ins.
  • Damaged files.
  • A corrupted profile.
  • Navigation pane issues.

How To Fix Outlook Not Opening in Windows

If you use Outlook on a Windows computer and Outlook doesn't open or opens with problems, try these troubleshooting steps in the order presented here, from simple to more complicated.

  1. Open Outlook in Safe Mode. If Outlook opens as expected in Safe Mode, the issue is likely an add-in or toolbar extension.

  2. Disable add-ins. One or more add-ins could be conflicting with Outlook and cause the problem. Disable all add-ins and see if this resolves the issue.

    1. Select File > Options > Add-ins.
    2. In the Manage section, select Go.
    3. Clear the check boxes next to the add-ins you want to disable.
    4. Select OK.
  3. Repair Outlook. The Outlook application may be damaged. Use the built-in Microsoft Office repair utility to fix it.

    1. Close all Office applications.
    2. Go to Start > Control Panel.
    3. Select Category View.
    4. In the Programs section, select Uninstall a Program.
    5. Right-click Microsoft Office and choose Change.
    6. Select Online Repair or Repair. Choose Yes if a user account control prompt appears.
    7. Restart Outlook after the process completes.
  4. Repair your Outlook profile. Outlook profiles can become corrupted, causing all sorts of problems, including Outlook not opening.

    1. Select File > Account Settings > Account Settings.
    2. Go to the Email tab.
    3. Choose Repair to open the Repair wizard (this option is not available for Outlook Exchange accounts).
    4. Follow the prompts to complete the wizard and restart Outlook.
  5. Repair Outlook data files. If Outlook still doesn't open, use the Inbox Repair tool to find and possibly fix the problem.

    1. Exit Outlook.
    2. Download and open the Inbox Repair Tool from Microsoft.
    3. Select Browse and navigate to your personal folders (.pst) file, then select Start.
    4. Choose Repair if the scan finds errors.
    5. When the repair is complete, restart Outlook.
  6. Reset the navigation pane. A startup issue with the navigation pane can prevent Outlook from opening correctly. Resetting the navigation pane might resolve the issue.

    1. Exit Outlook.
    2. Go to Start Run or press Windows Key+R.
    3. Type or paste outlook.exe /resetnavpane and select OK.
    4. Open Outlook. The navigation pane will be reset.

How To Fix Outlook Not Opening in Mac

The following troubleshooting techniques apply to Outlook for Mac and Outlook for Mac.

  1. Check for updates. A recent update could include a fix for the problem of not being able to start Outlook. Check for and install any available updates, even if you cannot open Outlook.

    1. Select Help > Check for Updates.
    2. Choose Update to download and install all available updates.
  2. Rebuild the Outlook database. Using the Microsoft utility to rebuild a corrupted database might solve the problem of Outlook not opening on a Mac.

    If you have a Microsoft Exchange account, rebuilding the database deletes any information that isn't synced with the server. Back up any Outlook data stored only on your computer before you rebuild the database.

    1. Exit all Office applications.
    2. Press the Option key and select the Outlook icon in the Dock to open the Microsoft Database Utility.
    3. Select the identity of the database you want to rebuild.
    4. Choose Rebuild.
    5. When the process is complete, restart Outlook.

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Now discussing:

Are you having trouble starting Outlook , Outlook , or Outlook , or receiving "Cannot start Microsoft Outlook. Cannot open the Outlook window" error messages? We can fix the problem for you, or you can use the troubleshooting steps we're providing below to help resolve these startup issues.

We can diagnose and fix several common Outlook issues for you. If our automated tool can't fix your issue, or if you'd like to fix it yourself, see the next section.

Sometimes add-ins can conflict with Outlook. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the problem.

Start Outlook in safe mode

  1. Choose Start > Run.

  2. Type Outlook /safe, and choose OK.

  3. In the Choose Profiles dialog box, accept the default setting of Outlook and choose OK.

    Accept default setting of Outlook in Choose Profile dialog box

  4. If prompted, enter your password and choose Accept.

Tips: 

  • How do you know you're working in safe mode? You'll see a label similar to the one below at the top of the screen.

    A label at the top of the window tells you the name of the person who owns the Inbox and identifies that Outlook is operating in safe mode

  • The Outlook Outlook icon overlaid with a caution symbol icon on your taskbar also alerts you the program isn't operating normally.

If Outlook does start in safe mode, then the problem is likely with one of your add-ins. You'll need to disable all of your add-ins before restarting Outlook.

Disable add-ins

  1. In the upper-left corner of Outlook, choose File > Options > Add-ins.

  2. At the bottom of the View and manage Office Add-ins, make sure the Manage box shows COM Add-ins, and then choose Go.

  3. As a precaution, when the COM Add-ins listing of your current add-ins opens, do one of the following:

    • Manually record the title of every selected add-in listed under Available Add-ins.

      or

    • Take a screenshot of the property sheet and save the image to a location of your choice.

  4. After you've captured the titles of the selected add-ins, clear all selected check boxes, and then choose OK.

    Caution: Click a check box to clear it. Don't select an add-in and choose Remove. If you have administrator rights, you could actually delete the add-in. For this troubleshooting exercise, you want to disable, not delete, an add-in.

  5. Choose File > Exit.

Restart

  1. Choose Start > Run, and in the Open box, type Outlook.

    Note: If the program loads properly, it's likely that one of your add-ins is the source of the error and you need to identify which one. To determine which add-in is the problem, enable one add-in at a time.

  2. In the upper-left corner of Outlook, choose File > Options > Add-ins.

  3. Select the check box next to an add-in you want to re-enable, and then choose OK.

  4. Repeat all steps until you've re-enabled all of the original add-ins and revealed the source of the error.

    Important: Remember, if Outlook opens in safe mode, you've revealed the add-in you just enabled as a source of the error.

    • Restart Outlook again and disable the add-in you enabled that produced the problem, and then start Outlook.

    • Make sure you go through the restart-disable-restart process for every add-in that was originally enabled in Outlook. An error could be caused by more than one add-in.

Your profile contains your Outlook settings. Occasionally, that profile can become corrupted. You can determine if it's corrupt by creating a new profile and changing which profile is used when Outlook starts.

  1. To open the Control Panel, do one of the following:

    • For Windows Vista or Windows 7, choose Start > Control Panel.

    • For Windows 8 and Windows 10, choose Start, and then type Control Panel.

      Note: For Windows 10, in Control Panel, make sure the View by box in the upper-right corner is set to Category.

  2. Choose Mail.

  3. In the Mail Setup - Outlook dialog box, choose Show Profiles > Add.

    Mail property sheet used to add or remove a profile for your Outlook account

  4. In the Profile Name box, type the name you want to use for your new profile.

    New Outlook mail profile being set up for kerimills

  5. On the Auto Account Setup page for the Add Account Wizard, under E-mail Account, fill in Your Name, E-mail Address, and Password, and then choose Next.

    Use Auto Account Setup to add email account as part of newly created profile for Outlook

    Note: The Add Account Wizard automatically searches for your mail server settings.

  6. Choose Finish and you'll find the new profile name you added listed on the General tab in the Mail dialog box.

  7. Under When starting Microsoft Outlook, use this profile, choose Prompt for a profile to be used, and then choose OK.

Use a different profile

  1. Restart Outlook

  2. In the drop-down list in the Choose Profile dialog box, choose the new profile name you created.

    Choose profile dialog box with the name of the new profile

  3. Choose OK.

    Note: If Outlook starts normally, then you've identified your Outlook profile as being corrupt and the source of your problem.

Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost).

Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. These files occasionally might become corrupted. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors.

  1. Exit Outlook to use the Inbox Repair Tool.

    Note: The content in the left pane is determined by the Outlook version you're using.

  2. Visit the links below for instructions based on your version of Outlook.

The navigation pane is the leftmost pane in Outlook where you'll find your folder list and the icons to move between Mail, Calendar, People, and Tasks. Running the /resetnavpane command removes all customizations to the navigation pane.

Note: If you have more than one computer, run the command on all computers because the navigation pane customizations are specific to the local Outlook on a computer.

  1. Close Outlook.

  2. Choose Start > Run.

  3. In the Open box, type Outlook.exe /resetnavpane, and then choose OK.

Compatibility mode is designed to help a program run on an older operating system. If Outlook is running in compatibility mode, you can turn that off and see if it fixes the problem.

Note: This step is for Outlook or Outlook Outlook doesn't have a Compatibility tab.

  1. Find the Outlook.exe file on your computer.

    • For Outlook , you can find this file in C:\Program Files\Microsoft Office\Office 15\ or C:\Program Files (x86)\Microsoft Office\Office 15\

    • For Outlook , you can find this file in C:\Program Files\Microsoft Office\Office 14\ or C:\Program Files (x86)\Microsoft Office\Office 14\

  2. Right-click the Outlook.exe file, choose Properties, and then choose the Compatibility tab.

  3. If any of the boxes on the Compatibility tab are checked, uncheck them, then choose Apply > OK.

  4. Restart Outlook.

Sours: https://support.microsoft.com/en-us/office/i-can-t-start-microsoft-outlook-or-receive-the-error-cannot-start-microsoft-office-outlook-cannot-open-the-outlook-window-d1f69da6-bbf-4d77bd7abb85


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