Fix Windows Defender Authentication Failed After Update - Microsoft Store network error Windows 11 troubleshooting-How to Open Windows Search Settings When It Won't Open

Updated 2026-06-13 17:12:39backup-recovery
Fix Windows Defender Authentication Failed After Update - Microsoft Store network error Windows 11 troubleshooting-How to Open Windows Search Settings When It Won't Open
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.