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Fix Windows Defender Update Error 0x80070643 - Fix OneDrive High CPU Usage on Windows 11-Teams Server Connection: Troubleshooting Steps

Updated 2026-06-13 23:08:17developer-tools
Fix Windows Defender Update Error 0x80070643 - Fix OneDrive High CPU Usage on Windows 11-Teams Server Connection: Troubleshooting Steps
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.