
Fix Windows Defender Connection Refused or Permission Denied Errors
If you see "connection refused" or "permission denied" when trying to start or update Windows Def...
Software troubleshooting desk

If you see "connection refused" or "permission denied" when trying to start or update Windows Def...

If PowerShell crashes on startup, during script execution, or when loading profiles, corrupted or...

When using Windows Terminal, you might see an error like "The process cannot access the file ...

After a Windows update, you might see a proxy error in Windows Security (formerly Windows Defende...

If you notice your PC fan spinning loudly or sluggish performance, Windows Security might be usin...

If you see error code 0x8031004f when installing a Windows update that involves BitLocker, it usu...