
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...

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

After a Windows update, you might see "Authentication failed" when trying to sign in to the Micro...

You've set up PowerShell logging—maybe transcription or script block logging—but the log files ar...

After updating Chrome, you might see an error like “Chrome version mismatch” or “Profile error: v...

If Windows Search shows a 504 Gateway Timeout error, the search indexer or a dependent service is...

You've scheduled a task in Windows Task Scheduler, but when it runs, you see: Task Schedule...