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How to Grant Full Access to a PowerShell Script - Fix Windows Update Connection Refused Due to Firewall-Troubleshooting Windows Certificate Error 0x800b0109

Updated 2026-06-13 21:27:05developer-tools
How to Grant Full Access to a PowerShell Script - Fix Windows Update Connection Refused Due to Firewall-Troubleshooting Windows Certificate Error 0x800b0109
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.