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Fix PowerShell Remote Connection Refused Error - Windows Defender 404 Error Troubleshooting-Windows Activation Blank Screen After Hardware Swap

Updated 2026-06-16 11:03:18cloud-software
Fix PowerShell Remote Connection Refused Error - Windows Defender 404 Error Troubleshooting-Windows Activation Blank Screen After Hardware Swap
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.