Fix Windows Defender Failed to Start: Registry Repair Steps - Android Chrome DNS Probe Finished NXDOMAIN Fix-Fix Microsoft Store Backup Not Working on Windows

Updated 2026-06-13 16:34:42office-tools

Fix Windows Defender Failed to Start: Registry Repair Steps - Android Chrome DNS Probe Finished NXDOMAIN Fix-Fix Microsoft Store Backup Not Working on Windows

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.