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Clear DNS Cache for Windows Update Issues - How to Resolve Port Already Allocated in Windows Security-Reduce Windows Defender CPU Usage: Disable Real-Time Protection

Updated 2026-06-16 23:28:05cloud-software
Clear DNS Cache for Windows Update Issues - How to Resolve Port Already Allocated in Windows Security-Reduce Windows Defender CPU Usage: Disable Real-Time Protection
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.