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Fix Windows Defender Real-Time Protection Authentication Failed - Resolve Windows Update Connection Refused Due to Proxy-pip SSL Certificate Error Fix Guide

2026-06-13 15:48:43cloud-software
Fix Windows Defender Real-Time Protection Authentication Failed - Resolve Windows Update Connection Refused Due to Proxy-pip SSL Certificate Error Fix 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.