Fix Windows Terminal Proxy Not Working: Practical Steps - How to Open a File Blocked by Windows Security-Resolving Permission Denied Error 5 on Windows

Updated 2026-06-18 11:27:11office-tools
Fix Windows Terminal Proxy Not Working: Practical Steps - How to Open a File Blocked by Windows Security-Resolving Permission Denied Error 5 on Windows
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.