Fix Windows 11 Blue Screen After Update with Bootable USB - Resolve Windows 11 Upgrade Hang at 99% Safe Mode-Troubleshooting Nginx Duplicate Listen Directive

Updated 2026-07-28 11:57:51security-tools
Fix Windows 11 Blue Screen After Update with Bootable USB - Resolve Windows 11 Upgrade Hang at 99% Safe Mode-Troubleshooting Nginx Duplicate Listen Directive
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.