Also, do not forget to check other Windows 11 Troubleshooting Guides right now such as how to copy and paste between Android and Windows 11, or how to remove Start Menu ‘Recommended’ Items in Windows 11, etc. That is everything you need to know about how to fix Windows Security Not Working in Windows 11.

After a few minutes, just check if you can launch Windows Security once again on your PC.

A new window will pop up, here just type the command mentioned below one at a time and then press Enter key:.

After that right-click on Windows PowerShell and click on Run as administrator.

On your Windows 11 PC, click on Start and then type Windows PowerShell.

If the above solution didn’t work, then try to reinstall Windows Security in Windows 11 again by using PowerShell Command.

How to reinstall Windows Security in Windows 11 using PowerShell Command: If this solution doesn’t work, then follow the next workaround below.

After both the scans are completed, try to check if Windows Security opens successfully. Step 2: Switch to Windows Security and open Virus & threat protection.

21002), released via Patch Tuesday, is broken and it displays a wrong message saying 'Local Security protection. After the scan is completed, type the following DISM command Windows Terminal and press Enter key:ĭism /Online /Cleanup-Image /RestoreHealth Microsoft has confirmed that a recent Defender update (KB5007651, version.Type the following SFC command first in Windows Terminal and press Enter key:.First of all, you need to open Windows Terminal on Windows 11, to do that right-click on the Start button and then click on Windows Terminal (admin).

Windows 11 windows defender not working