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Fix OpenVPN Permission Denied on Tun Device - Fix Windows Security Authentication Failed in Remote Desktop-Windows Defender Throttling Error Guide

2026-06-13 13:32:35windows-fixes
Fix OpenVPN Permission Denied on Tun Device - Fix Windows Security Authentication Failed in Remote Desktop-Windows Defender Throttling Error Guide

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.