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Fix Windows Defender Sync Error 504 Gateway Timeout - Microsoft Store Game Won't Launch? Fix Dependency Issues-Fix PowerShell Access Denied and Authentication Errors

Updated 2026-06-14 20:23:41developer-tools
Fix Windows Defender Sync Error 504 Gateway Timeout - Microsoft Store Game Won't Launch? Fix Dependency Issues-Fix PowerShell Access Denied and Authentication Errors
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.