Troubleshoot 502 Bad Gateway in Windows Terminal: Checklist - How to Resolve 504 Gateway Timeout in Windows Security-Fix Outlook File Locked by Outlook.exe Not Responding

Updated 2026-06-14 21:36:34office-tools
Troubleshoot 502 Bad Gateway in Windows Terminal: Checklist - How to Resolve 504 Gateway Timeout in Windows Security-Fix Outlook File Locked by Outlook.exe Not Responding
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.