
How to Reinstall the Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...
Software troubleshooting desk

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

If you see an error referencing a log file when opening Microsoft Store, the app might fail to lo...

When Windows is not activated, you have a limited time (typically 30 days) before it starts showi...

If you're seeing a "504 Gateway Timeout" error when using Windows Search—especially when searchin...

You try to start Windows Defender Antivirus and get a “permission denied” error. This typically h...

Windows Search Indexing Service can stop working if it encounters a port conflict. This usually h...