
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...

When you try to activate Windows and see an error like “You don’t have permission to activate” or...

If Windows Search stops working, files don't appear in search results, or indexing seems stuck, t...

You double-click Command Prompt (cmd.exe) and a black window flashes on screen—then disappears. T...

You’re trying to start Windows Search or an indexing service, and you see an error like “Port 80 ...

If you see error code 0x80070005 when using Windows Search on a dual-boot system with Ubuntu, it ...