Fix Chrome Profile Connection Refused or Permission Denied - Troubleshoot Windows Defender DNS Update Failure on Windows 10-Enable Chrome Profile Backup Before Migration: Step-by-Step

Updated 2026-06-14 19:28:36macos-help
Fix Chrome Profile Connection Refused or Permission Denied - Troubleshoot Windows Defender DNS Update Failure on Windows 10-Enable Chrome Profile Backup Before Migration: Step-by-Step
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.