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Fix 'Outlook Command Not Found' Error When Opening - Windows Defender Connectivity Troubleshooting Guide-How to Stop Windows Update from Using 100% CPU

Updated 2026-06-15 10:35:16developer-tools
Fix 'Outlook Command Not Found' Error When Opening - Windows Defender Connectivity Troubleshooting Guide-How to Stop Windows Update from Using 100% CPU
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.