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Restart your PC and check if the Windows Security app is now working.

Copy and paste the command below and hit Enter: Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage.

Click the dropdown at the top and select the Windows PowerShell option.

Right-click on the Start icon and select the Windows Terminal (Admin) option.

How can I fix the Windows 11 Windows Security not opening issue? In this article

You need to repair the system files to fix this. Faulty system files: If the system files meant to load the Windows Security apps are faulty, the app won’t open.Glitches with the app: One of the reasons Windows security is not loading on Windows 11 is some glitches preventing it from opening.The reasons Windows Security settings are not opening or launching on Windows 11 after upgrading are close to close. Why is my Windows Security not opening on Windows 11? Nevertheless, one of the most frequently encountered concerns has been that, after an upgrade or random upgrade, the Windows 11 Windows Security is not opening or functioning as expected.

It is one of the most excellent remedies available, and it is effective in the vast majority of circumstances. When you install Windows 11, Windows Security, also known as Windows Defender, becomes the default antivirus and security solution. Home › Windows 11 › Repair › Fix Windows Security center not opening