Windows Security 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security, it usually means the app can't ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
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Cause
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Fresh repair notes
All notesEnable Windows Defender Audit Log for Troubleshooting
When Windows Defender isn't detecting a threat or is blocking a legitimate application, audit log...
Fix Windows Update Error 0x80070570: Permission Denied
When updating Windows, you might see error 0x80070570 with a message about insufficient permissio...
How to Fix Windows Update Stuck at 100%
You've waited for a Windows update to finish, but it's stuck at 100% for minutes or hours. This i...
How to Fix Nginx 502 Bad Gateway Error
When you see a 502 Bad Gateway error from Nginx, it means Nginx could not get a valid response fr...
Windows Security App Not Opening After Update: Fixes
After a Windows update, the Security app may refuse to open—clicking the icon does nothing, or it...
Issue queue
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