zhizhu
Home / windows-fixes / Fix 'Port Already Allocated' Error in Windows Defender on Windows 10 - Task Scheduler Fails to Start – Error 2147943785 Fix-Windows Search Auto Start Fix Checklist

Fix 'Port Already Allocated' Error in Windows Defender on Windows 10 - Task Scheduler Fails to Start – Error 2147943785 Fix-Windows Search Auto Start Fix Checklist

2026-06-13 18:30:10windows-fixes
Fix 'Port Already Allocated' Error in Windows Defender on Windows 10 - Task Scheduler Fails to Start – Error 2147943785 Fix-Windows Search Auto Start Fix Checklist

Final checklist

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