Hence, we will explore the possible causes and solutions to fix this problem.

Why is Outlook not opening on Windows 11?

Outlook not opening on Windows 11 may be due to various factors on different PCs. The most common factor that causes Outlook not to work on your computer is the outdated Outlook app. When the app is not up-to-date, it won’t have access to updates to help improve its performance. Nevertheless, Outlook failing to open on Windows 11 can occur for some other reasons that are as follows:

Outdated Windows OS – Windows develop issues when its operating system is not updated. So, Outlook’s failure to open on Windows 11 can be due to an outdated OS. Check this guide for fixes if you can’t connect to the update service on your Windows. Third-party app interference – When you have many apps running simultaneously on your computer, you are likely to run into problems with the Outlook app. Antivirus software is the most common culprit for this problem. Issues with Outlook data files – Outlook data files can become corrupt or lost, resulting in errors with the app working or opening on your computer. So, Outlook’s corrupt data file on Windows 11 will prevent it from opening because it’s not complete. Faulty Outlook Add-ins – Download add-ins on the Outlook app to help you combine features of multiple apps into one. However, these add-ins may be malicious or unstable, causing issues with the app’s functionality on the PC.

What can I do if Outlook won’t open in Windows 11?

There are a couple of solutions for fixing Outlook if it’s not opening on Windows 11. Go through the following preliminary checks before proceeding with any advanced troubleshooting:

Close unnecessary apps running on your PC. Try using Outlook on a browser to see if the platform is working. If Outlook fails to work on Firefox, check this guide for solutions. Restart your computer to fix startup errors that may affect app performance.

If you’re unable to fix the problem after trying the steps above, then proceed with the solutions below:

1. End task for Outlook to restart the app

When you end tasks for Outlook on your PC, it will kill any background activity on the app and close it completely. Also, it helps to refresh the Outlook app and fix errors preventing it from opening.

2. Run Outlook in Safe Mode and disable plugins & add-ons

Removing some add-ins from Outlook will help disable those plugins and add-ins conflicting with Outlook, causing it not to work as it should. SPONSORED

3. Uninstall and reinstall Outlook on your PC

You can check out our other ways to uninstall apps on Windows 11 if you encounter issues with these steps.

4. Update the Outlook app

Quit running Outlook on Safe Mode, then try and check if Outlook opens when you click the app icon.

5. Set the correct Windows date and time

Users can experience difficulty accessing their apps if their device date and time are incorrect. We recommend you read through our detailed guide on changing the time on Windows 11 if you can’t get around the steps above.

6. Repair Microsoft Office

Repairing Microsoft Office will fix issues that can cause it not to function properly. You should be able to open the Outlook app on Windows 11 after trying the fixes above. However, you may want to check how to fix your device’s Outlook folder disappearing issue also. Also, read what to do if Outlook crashes after Windows updates on your PC and get it working again. For further questions and suggestions, kindly leave them in the comments section.

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