Fix Remote Desktop Connection 404 Error in IIS - How to Fix OneDrive Access Denied During Sync Setup-Teams Permission Denied Error Fix

Updated 2026-06-14 17:29:12office-tools
Fix Remote Desktop Connection 404 Error in IIS - How to Fix OneDrive Access Denied During Sync Setup-Teams Permission Denied Error Fix
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.