Fix PowerShell Proxy Authentication Failed Errors - How to Resolve 'Permission Denied' on Windows-Mac OneDrive Pending Sync Troubleshooting

Updated 2026-06-13 18:10:17office-tools
Fix PowerShell Proxy Authentication Failed Errors - How to Resolve 'Permission Denied' on Windows-Mac OneDrive Pending Sync Troubleshooting
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.