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Fix Microsoft Store Sync Issues Between Devices - Fix Windows Defender Authentication Failed After Update-Reset Windows Activation Cache Script Guide

Updated 2026-06-14 12:04:41browser-issues
Fix Microsoft Store Sync Issues Between Devices - Fix Windows Defender Authentication Failed After Update-Reset Windows Activation Cache Script Guide
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.