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Fix Windows Defender Connection Refused via Registry - PowerShell Port Conflict with Firewall: How to Fix-Troubleshooting Rust Cargo Build Exit Code 101

2026-06-13 17:45:13developer-tools
Fix Windows Defender Connection Refused via Registry - PowerShell Port Conflict with Firewall: How to Fix-Troubleshooting Rust Cargo Build Exit Code 101

Final checklist

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