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Fix PowerShell Connection Timeout Due to Firewall Settings - Windows Update Access Denied Troubleshooting-How to Resolve Error 0x8007042c in Windows Defender

Updated 2026-06-14 02:02:20macos-help
Fix PowerShell Connection Timeout Due to Firewall Settings - Windows Update Access Denied Troubleshooting-How to Resolve Error 0x8007042c in Windows Defender
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.