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How to Fix Microsoft Store Login Loop - Windows Activation Blocked by Firewall – How to Allow-Fix Windows Defender 404 Not Found in Group Policy

Updated 2026-06-14 21:53:29developer-tools
How to Fix Microsoft Store Login Loop - Windows Activation Blocked by Firewall – How to Allow-Fix Windows Defender 404 Not Found in Group Policy
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.