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Fix Windows Update Service Not Starting Due to Permission Denied - Troubleshooting 0x80070643 Windows Update on Mac-Fix Windows Defender Proxy Error on Windows 11

2026-06-13 13:11:59macos-help
Fix Windows Update Service Not Starting Due to Permission Denied - Troubleshooting 0x80070643 Windows Update on Mac-Fix Windows Defender Proxy Error on Windows 11

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.