
How to Reinstall Windows Defender in Windows 11
If Windows Defender (Microsoft Defender Antivirus) is missing, disabled, or not working correctly...
Software troubleshooting desk

If Windows Defender (Microsoft Defender Antivirus) is missing, disabled, or not working correctly...

You see the error 'Windows can't activate. Can't connect to your organization's activation server...

If your VSCode terminal is behaving oddly—wrong shell path, missing colors, or commands failing—r...

After removing malware, Windows Security may fail to launch or show a blank window. This is often...

If you're running a local development server or an internal application with a self-signed or pri...

If Windows Security opens to a blank white or gray screen, or the interface fails to load, a corr...