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How to Fix Windows Security DNS Error 0x800704cf - Fix Windows Defender Token Expired Preventing Service Start-Windows Update Proxy Error Troubleshooting Guide

2026-06-13 15:24:12
How to Fix Windows Security DNS Error 0x800704cf - Fix Windows Defender Token Expired Preventing Service Start-Windows Update Proxy Error Troubleshooting Guide

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.