Fix Chrome 'Permission Denied' Error on Ubuntu - How to Resolve Windows Defender Port Already Allocated on Windows 10-Resolve 502 Bad Gateway in Windows Update

Updated 2026-06-14 23:43:09backup-recovery
Fix Chrome 'Permission Denied' Error on Ubuntu - How to Resolve Windows Defender Port Already Allocated on Windows 10-Resolve 502 Bad Gateway in Windows Update
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.