How to Fix DNS Probe Finished NXDOMAIN on Chrome (IPv4/IPv6) - Troubleshoot PowerShell File Download 404-Windows Defender Permission Denied Error Fix

Updated 2026-06-19 05:32:41office-tools
How to Fix DNS Probe Finished NXDOMAIN on Chrome (IPv4/IPv6) - Troubleshoot PowerShell File Download 404-Windows Defender 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.