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Checklist for Fixing Windows Defender Command Not Found - Resolve Windows Search Proxy Issue-How to Fix Teams Error CAA2000C Authentication Failure

Updated 2026-06-14 21:06:52developer-tools
Checklist for Fixing Windows Defender Command Not Found - Resolve Windows Search Proxy Issue-How to Fix Teams Error CAA2000C Authentication Failure
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.