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Fix 'npm command not found' Error in Ubuntu Terminal - Troubleshoot Windows Security App Connection Problem-Fix 'Windows Defender Failed to Start Due to Group Policy' Error

2026-06-13 23:32:47developer-tools
Fix 'npm command not found' Error in Ubuntu Terminal - Troubleshoot Windows Security App Connection Problem-Fix 'Windows Defender Failed to Start Due to Group Policy' 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.