Windows Defender 502 Bad Gateway: Setup and Troubleshooting Guide - Windows Terminal 502 Error Checklist-Resolve PowerShell 429 Rate Limit Error

Updated 2026-06-14 18:16:41backup-recovery
Windows Defender 502 Bad Gateway: Setup and Troubleshooting Guide - Windows Terminal 502 Error Checklist-Resolve PowerShell 429 Rate Limit 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.