$tempPath = "c:\work"
$password = "P@ssword"
if (Test-Path ($tempPath)) {
  $certs = Get-Item (Join-Path $tempPath "*.pfx")
  if ($certs.Count -gt 0) {
    If (!(test-path "cert:\localmachine\Shielded VM Local Certificates")){
      New-Item -Path "cert:\localmachine" -Name "Shielded VM Local Certificates"
    }
    ForEach ($cert in $certs) {
      $filename = Join-Path $tempPath $cert.Name
      Import-PfxCertificate -FilePath $filename -CertStoreLocation "Cert:\LocalMachine\Shielded VM Local Certificates" -Password (ConvertTo-SecureString -String $password -Force -AsPlainText)
    }
  } else {
    Write-Host "PFX file does not exist in $($tempPath) ."
  }
} else {
  Write-Host "$($tempPath) does not exist."
}