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Fix High CPU Usage by MsMpEng.exe (Windows Defender) - Troubleshooting Slow Windows Security Migration Performance-Fix Windows Search Indexing Stuck on Paused

2026-06-13 18:29:41macos-help
Fix High CPU Usage by MsMpEng.exe (Windows Defender) - Troubleshooting Slow Windows Security Migration Performance-Fix Windows Search Indexing Stuck on Paused

Final checklist

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