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Fix Windows Defender Update Fails with Connection Timeout Error - How to Fix Windows Defender Error 0x80070422-Resolve Outlook 0x800CCC0E Connection Error

Updated 2026-06-14 03:53:16developer-tools
Fix Windows Defender Update Fails with Connection Timeout Error - How to Fix Windows Defender Error 0x80070422-Resolve Outlook 0x800CCC0E Connection Error
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.