Comparing Hash of downloaded Files with PowerShell

)

$fs = new-object System.IO.FileStream $File, “Open”, “Read”, “Read”;
$algo = [type]"System.Security.Cryptography.$Algorithm"
$crypto = $algo::Create()
$hash = [BitConverter]::ToString($crypto.ComputeHash($fs)).Replace("-", "")
$fs.Close()
return $hash