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Fix Windows Security Connection Timeout After Update - Microsoft Store Setup Checklist for New PC-Windows Defender Error 0x80073b01 Troubleshooting Guide

Updated 2026-06-14 04:59:38developer-tools
Fix Windows Security Connection Timeout After Update - Microsoft Store Setup Checklist for New PC-Windows Defender Error 0x80073b01 Troubleshooting Guide
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.