Fix Windows Search 502 Bad Gateway Due to Proxy Settings - Windows Defender Not Opening? Here's How to Fix It-How to Solve Proxy Not Working in CMD

Updated 2026-06-13 18:39:11backup-recovery
Fix Windows Search 502 Bad Gateway Due to Proxy Settings - Windows Defender Not Opening? Here's How to Fix It-How to Solve Proxy Not Working in CMD
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.