
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...

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

You try to connect via Remote Desktop and see an error like "An authentication error has occurred...

You open OneDrive and see a 'Connection refused' error. Your files aren't syncing, and the OneDri...

If Remote Desktop (RDP) connections are slow, fail to load, or show stale credentials, cached fil...

You wake your PC from sleep, type in the Start menu search bar, and nothing happens—or results ar...

After a macOS update, OneDrive may stop syncing files or show error messages like “OneDrive is sy...