8 Fixes for Outlook App Not Opening on Windows 11


There are several reasons why the Outlook app may not be opening on Windows 11. These reasons may include corrupted Outlook data, antivirus software and third-party add-in interference, Windows 11 update issues, or missing or corrupt Outlook files.

The problem can occur at any time, but it is most likely to occur after you have made a change to your Outlook settings, installed a new add-in, or updated Windows 11. We will discuss how to eliminate this problem.

Quick Fixes

  1. Restart the app on your PC.
  2.  Ensure Outlook doesn’t run in compatibility mode. In the Outlook app, press alt + Enter to open its properties, uncheck the Run this program in compatibility mode for option in the Compatibility tab, and click Apply and OK.
  3.  Consider creating a new Outlook profile.

1. End Outlook process with Task Manager

Ending the Outlook process with Task Manager forces Outlook to close completely, sometimes helping to fix problems with Outlook not opening on your Windows 11 PC. Here are the steps on how to do it:

  1. Press the ctrl + shift + esc keys simultaneously to open Task Manager.
  2. Then, open the Processes tab, find the Microsoft Outlook app, and select the End task option.
    outlook app not opening windows 11
  3. Finally, restart the app and see if the problem is fixed.

2. Restart the app

Restarting the app signifies closing and then reopening an application. This fix can often fix minor issues causing the app to malfunction. In the case of Outlook, restarting the app can clear any temporary glitches or conflicts that are preventing it from launching.

Here are the steps on how to restart Outlook on Windows 11:

  1. Press the Windows + X keys simultaneously to open the Quick Link menu and select Installed apps from the list.
    outlook app not opening windows 11
  2. Then, find the Microsoft Office suite, click the ellipses, and select Advanced settings.
    outlook app not opening windows 11
  3. Afterward, click Repair under Reset.
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3. Reset the Navigation pane

The navigation pane can be problematic and can prevent the Outlook app from launching properly. When this problem is evident, a viable solution would be resetting the navigation pane. Use the following steps to complete the solution:

  1. Press the Windows + R to start the Run dialog, type in the following code into the text field, and hit Enter:
    Enter.outlook.exe /resetnavpane
    outlook app not opening windows 11

4. Start Outlook in Safe Mode

Add-ins in Outlook can improve user experience in numerous ways. Because of this importance, it is necessary to keep the app up-to-date. An outdated or corrupted Outlook add-in may cause the app to not respond or open. Opening Outlook in Safe Mode can help to curb this problem.

Use the following steps to implement this solution:

  1. Hold the ctrl key, double-click the Outlook shortcut, and click Yes on the next prompt.
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  2. When the Outlook app opens, click the File menu at the top of the screen.
  3. Then, click Options on the left pane.
  4. Open the Add-ins tab, then open the drop-down menu next to Manage and click COM Add-ins.
  5. Then, click the Go button.
  6. Finally, uncheck the boxes to deactivate add-ins and click OK.
  7. Restart Outlook and check the add-ins one after the other until you notice the problem.
  8. Once you notice the problematic add-in, remove it avert future issues.

5. Update the Outlook app

Updating your Outlook app is important to fix bugs, improve performance, and access new features. It can also resolve issues with the app not opening in Windows 11. To update manually, follow these steps:

  1. Open the Outlook app on your PC, then click the File option on the top-left of the screen.
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  2. Then, click the Office account option.
    outlook app not opening windows 11
  3. Afterward, click Update options to reveal available update options.
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  4. Finally, click Update now to begin the update.
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6. Delete the Outlook app data folder

Some of the Outlook app data on your PC may be corrupt. To resolve that, you can try removing Outlook’s app data folder from your PC and opening Outlook again. Here’s how.

  1. Press the Windows + R to start the Run dialog, type in the following code into the text field, and hit Enter:
    outlook app not opening windows 11
  2. Then, hit ctrl + A to highlight all the files and folders within the Outlook folder, and click the delete icon at the top to delete all of them.
    outlook app not opening windows 11

7. Perform SFC and DISM scans

This solution is valuable when your Outlook app is not opening on Windows 11 correctly. These built-in scans can identify and repair corrupted system files that may be causing the error. Use the following steps to complete this fix:

  1. Press the Windows and S keys simultaneously and enter cmd in the text field.
  2. Then, select the Run as administrator option on the right side to start the Command Prompt with administrator privileges.
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  3. Once the User Account Control prompts you, select Yes to continue.
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  4. When the Command Prompt displays, enter the following command into the prompt and tap the Enter key to start an SFC scan:
    sfc /scannow
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  5. Once the scan is complete, copy and paste the command below and press the Enter key to run the command:
    DISM.exe /Online /Cleanup-image /Restorehealth
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  6. Finally, it would be best to restart your computer to implement repairs.

8. Scan for virus

Windows Security, formerly known as Windows Defender, includes various features such as real-time protection, virus and threat detection, and more to protect the system against viruses or malware. This tool will fix your Windows PC not turning off if the cause is malware. Use the following steps to complete the fix:

  1. Hold the Windows + S keys down simultaneously, and type Windows Security in the search field. Then, open the Windows Security application.
  2. After opening, click on the Virus & threat protection option.
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  3. Thirdly, click Scan options to see all available scans.
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  4. On the next display, choose the Full scan option, then click Scan now to do a deep scan on your computer for viruses or malware.

In troubleshooting the Outlook app not opening Windows 11, these eight fixes provide a comprehensive guide to tackle a range of potential issues. From ensuring system updates are current to delving into application-specific settings, users can navigate through common obstacles.

These obstacles impede the smooth functioning of the Outlook app. By following these steps, users are equipped with the knowledge to identify and resolve issues, restoring seamless access to their email and productivity tools.

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Richard Omachona
Richard is a techie in providing fixes and solutions for computer issues of various kinds. Among his contemporaries, he is a preferred choice. His experiences are vast in Windows operating systems, and several other skills in programming such as Python, Web Frontend designing implementing at industry standards, best practices in HTML, CSS and JavaScript. and basics in Web Backend. He also loves traveling, gaming and music.