Fix Outlook 502 Bad Gateway Error from Antivirus Interference - Fix Windows Security Loading Issue with Built-In Repair Tools-Fix Microsoft Store Invalid Configuration Sync Error

Updated 2026-06-14 07:24:01developer-tools
Fix Outlook 502 Bad Gateway Error from Antivirus Interference - Fix Windows Security Loading Issue with Built-In Repair Tools-Fix Microsoft Store Invalid Configuration Sync Error
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.