
Fix Windows Defender Error 0x80073b01 (Crash on Startup)
If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...
Software troubleshooting desk

If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...

You try to run Windows Update, but it fails with an error about a port already being allocated. T...

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

You see 'Network error: Permission denied' when trying to update or run Windows Defender. This us...

If Windows Defender fails to start or shows error messages like "Service configuration is corrupt...

If you see a message that the Windows Update configuration tool is not responding, it usually mea...