zhizhu
Home / browser-issues / Fix Windows Defender Port Already Allocated Error in Command Line - Resolve PowerShell Not Starting After System Update-BitLocker Blank Screen No Cursor Fix: Practical Steps

Fix Windows Defender Port Already Allocated Error in Command Line - Resolve PowerShell Not Starting After System Update-BitLocker Blank Screen No Cursor Fix: Practical Steps

Updated 2026-06-14 01:42:35browser-issues
Fix Windows Defender Port Already Allocated Error in Command Line - Resolve PowerShell Not Starting After System Update-BitLocker Blank Screen No Cursor Fix: Practical Steps
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.