$tempPath = "c:\work"
$password = "P@ssword"
if (Test-Path ($tempPath)) {
  $certs = Get-Item "cert:\localmachine\Shielded VM Local Certificates\*"
  ForEach ($cert in $certs) {
    if (($cert.Subject).contains($env:COMPUTERNAME)) {
      $filename = ($cert.Subject -replace "CN=","") -replace " ", "_"
      $filename = $filename + ".pfx"
      $filename = Join-Path $tempPath $filename
      certutil -exportPFX -p $password "Shielded VM Local Certificates" $cert.Thumbprint $filename
    }
  }
} else {
  Write-Host "$($tempPath) does not exist."
}