How to Fix Windows Update Error 502 Bad Gateway
Windows Update may show a 502 Bad Gateway error when the update service cannot reach Microsoft's ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix PostgreSQL Connection Refused on Port 5432
When you see psql: error: connection to server at ... failed: Connection refused on ...
Why Windows Update Stuck at 100% and How to Fix It
You've waited for the update to finish, but the progress bar is stuck at 100% for what feels like...
Fix Windows Defender Update Error 'Permission Denied'
You see 'Permission Denied' when Windows Defender tries to update. This usually means the update ...
Fix Windows Defender Real-Time Protection Turned Off & Connection Refused
You open Windows Security and see real-time protection is off. Trying to turn it on fails with a ...
Checklist for Fixing Windows Update File Locked Errors
When a Windows Update fails with a message like "file locked" or "file in use," it usually means ...
Topic paths
Quick titles
Cloudflare DNS Permission Denied TroubleshootingMicrosoft Store Update Fails Due to Low Disk Space – FixFix Windows Update Hanging on Download: Step-by-StepHow to Resolve Git Non Fast Forward RejectionFix Cloudflare DNS Not Working on Router SetupFix Windows Update Error 0x8024401cpgAdmin Server Connection Refused Error FixWindows 10 Chrome ERR_CONNECTION_RESET Troubleshooting