Forum Discussion
Windows Security won't open on Windows 11
You can try the following steps to resolve the issue:
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Run the Windows Security Troubleshooter: Go to Settings > Update & Security > Troubleshoot. Find and run the Windows Security troubleshooter.
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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
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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"} -
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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Mark_Albin How do you run a security scan if Windows Security won't open???
- Most fixes mentioned here and elsewhere work for a little while, a few days. While it is fixed, you can run a security scan.
- Can't run a security scan if security center won't open????
- Most fixes mentioned here and elsewhere work for a little while. Run one of the fixes, reboot, and run a security scane while WIndows Security is accessible.
