Windows Security App Won't Open in Safe Mode: Fixes - DNS Probe Finished NXDOMAIN: Quick Fixes-Resolve Nginx 'invalid location directive' Error

Updated 2026-07-28 10:04:07developer-tools
Windows Security App Won't Open in Safe Mode: Fixes - DNS Probe Finished NXDOMAIN: Quick Fixes-Resolve Nginx 'invalid location directive' 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.