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How to Fix 'Windows Security Blocked File from Opening' Error - Troubleshoot Windows Defender DNS Error-Certbot Nginx Plugin Installation on Ubuntu 22.04

2026-06-13 17:40:01macos-help
How to Fix 'Windows Security Blocked File from Opening' Error - Troubleshoot Windows Defender DNS Error-Certbot Nginx Plugin Installation on Ubuntu 22.04

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.