
Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...
Software troubleshooting desk

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

If you're seeing errors like "Update failed" or "Sync timed out" when running Update-Module...

If your system feels sluggish and Task Manager shows high CPU usage from TiWorker.exe

You open Windows Security and see a blank page or a '404 Not Found' error. This often happens aft...

You open OneDrive and see 'Access Denied' next to a file or folder, or sync simply stops with tha...

If you see a 'Token expired' or 'Configuration failed' message in Microsoft Teams, it usually mea...