Windows 10: Windows 11 Defender app not launching

Windows defender worked fine with my windows 10, after upgrading to windows 11, defender app does not launch. I double click the icon and nothing happens.

:)

 

Installing Apps on Windows 10 Has Windows Defender Finding Malware

Hi Tommy,

Welcome to the Microsoft Community.

• 
  Is this issue specific to third party apps?
  

I would suggest you to open Windows defender and add exclusions and check if it helps. Follow the steps to add exclusions in windows Defender.

• 
  Type Windows defender settings in the search bar and press enter
  
• 
  Under Exclusions click on Add Exclusion
  

Hope this information helps. Reply to the post with an updated status of the issue so that we can assist you further.

 

Can't launch any applications

Hi,

This error message will show if the application or program that you are trying to open was been blocked by Windows Defender SmartScreen. Having said that, we suggest that you disable Windows Defender SmartScreen by following these steps:

• Click on Start.
• Type Windows Defender Security Center.
• Click on App & browser control.
• Click on Off in the following options:
  • Check apps and files.
  • SmartScreen for Microsoft Edge.
  • SmartScreen for Windows Store apps.
• SmartScreen is now completely disabled. If you'd like to still receive a warning when a potentially malicious file or program is detected, you can choose Warn in each SmartScreen option.

Let us know if the steps above helped you to resolve the issue.

 

Get Started app wont launch

Hi,

Thank you for posting your query in Microsoft Community. Appreciate your interest in using Windows 10.

To assist you better, I would like to ask what is the error message you get when the app is launched.

Suggest you to run the Windows Store Apps troubleshooter by following the steps below:

• Type “Troubleshooting” in search bar and press Enter.
• Click on “View All” on top left pane.
• Select “Windows Store Apps” from the list and follow the prompts for troubleshooting.

Hope the information is helpful. Feel free to
write to us for any other assistance with Windows, we’ll be glad to assist you.