Fix PowerShell Crash with Exit Code 0xc0000005 - Resolving 502 Bad Gateway on Nginx and Cloudflare-Fix Windows Defender Not Starting

Updated 2026-06-14 01:20:31windows-fixes
Fix PowerShell Crash with Exit Code 0xc0000005 - Resolving 502 Bad Gateway on Nginx and Cloudflare-Fix Windows Defender Not Starting
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.