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How to Fix OpenVPN Certificate Verification Failed - Fix 0x80070643 Windows Defender Module Missing-Windows Update Rate Limit Error Fix

Updated 2026-06-13 13:07:21cloud-software
How to Fix OpenVPN Certificate Verification Failed - Fix 0x80070643 Windows Defender Module Missing-Windows Update Rate Limit Error Fix
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.