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Fix Windows Update High CPU Usage and Service Not Responding - Why Windows Defender Says File Locked and How to Fix It-Resolve Port Conflicts Caused by Windows Firewall Rules

2026-06-13 15:21:24
Fix Windows Update High CPU Usage and Service Not Responding - Why Windows Defender Says File Locked and How to Fix It-Resolve Port Conflicts Caused by Windows Firewall Rules

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.