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Fix Windows Defender Connection Refused via Registry - Using Ubuntu Package Manager Alternatives on Microsoft Store-Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Error

2026-06-13 16:22:13browser-issues
Fix Windows Defender Connection Refused via Registry - Using Ubuntu Package Manager Alternatives on Microsoft Store-Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Error

Final checklist

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