$metrics = Get-CimInstance Win32_ReliabilityStabilityMetrics -ErrorAction SilentlyContinue
if ($metrics.Count -ge 1) {
  $metric = $metrics | Sort-Object TimeGenerated -Descending | Select-Object -First 1
  return [Math]::Round($metric.SystemStabilityIndex * 10)
} else {
  throw ("Get-CimInstance")
}