Fix PowerShell Stuck on Loading Screen - Fix Windows Defender Rate Limit Error-Windows Update 504 Proxy Timeout Fix

Updated 2026-06-13 21:44:02browser-issues
Fix PowerShell Stuck on Loading Screen - Fix Windows Defender Rate Limit Error-Windows Update 504 Proxy Timeout Fix
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.