
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 might see a Windows activation error like "We can't activate Windows on this device because t...

If Windows Search stops working—no results, missing files, or high CPU usage—reinstalling the fea...

When you try to open a Microsoft Store log file (usually from %LOCALAPPDATA%\Microsoft\Wind...

If the Microsoft Store won't load, shows error 0x80131500, or downloads stall, a corrupted DNS ca...

If your network requires a proxy server to access the internet, you may need to configure it in t...