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Fix Windows Update Config Sync Issues Between Devices - How to Fix Remote Desktop Error 0x204-Resolve Windows Defender Connection Refused via Registry

Updated 2026-06-13 18:41:55windows-fixes
Fix Windows Update Config Sync Issues Between Devices - How to Fix Remote Desktop Error 0x204-Resolve Windows Defender Connection Refused via Registry
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.