Fix Chrome Extension Install Access Denied Error - Fix OneDrive Sync Not Working After Windows 11 Update-Nginx 502 Bad Gateway: A Practical Troubleshooting Guide

Updated 2026-06-17 20:27:48macos-help
Fix Chrome Extension Install Access Denied Error - Fix OneDrive Sync Not Working After Windows 11 Update-Nginx 502 Bad Gateway: A Practical Troubleshooting Guide
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.