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Fix VirtualBox Kernel Driver Not Installed on Mac - Reduce Boot Time Caused by Windows Defender-Fix Windows Security Port Already Allocated Error

2026-06-13 14:31:31macos-help
Fix VirtualBox Kernel Driver Not Installed on Mac - Reduce Boot Time Caused by Windows Defender-Fix Windows Security Port Already Allocated Error

Final checklist

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