Windows Security won't open on Windows 11

TayDean 

You can try the following steps to resolve the issue:

1. Run the Windows Security Troubleshooter: Go to Settings > Update & Security > Troubleshoot. Find and run the Windows Security troubleshooter.
   
   

2. Repair Windows Security using DISM: Open Command Prompt as administrator and run the following commands: DISM.exe /Online /Cleanup-image /Restorehealth DISM.exe /Online /Cleanup-image /StartComponentCleanup
   
   

3. Re-register Windows Security apps: Open a Command Prompt as administrator and run the following commands:
   
   powershell -ExecutionPolicy Unrestricted Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
   
   

4. Reset Windows Security app: Go to Settings > Apps > Apps & features. Find Windows Security, and click Advanced options. Click Reset.

If none of these steps work, you may need to perform a clean install of Windows 11 to resolve the issue.

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