Solved - Windows Security won't open on Windows 11 / 10 (100% Working Method)

In this video, you will learn how to fix the “Can’t open Windows Security” issue and get it working again in Windows 11 or Windows 10. If your Windows Security app won’t launch, opens and closes immediately, or shows a blank screen, this guide provides a quick and proven solution using a simple PowerShell command.

✅ WORKING COMMAND:

Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

This method repairs the Windows Security app and resolves common problems like:

Windows Security not opening

Security Center not working

Windows Defender won’t launch

Virus & threat protection not loading

Windows 11 security issues

Windows 10 protection settings missing

No third-party tools needed — just built-in Windows features!

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