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Windows Update Cannot Connect (Permission Denied) Fix - Port Free But PowerShell Says Allocated: Solved-Windows Firewall Blocked App – How to Allow

Updated 2026-06-14 03:57:28developer-tools
Windows Update Cannot Connect (Permission Denied) Fix - Port Free But PowerShell Says Allocated: Solved-Windows Firewall Blocked App – How to Allow
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.