[Kazun]

Код:

$server = $env:ComputerName
$key = "SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\Results\Install"
$keytype = [Microsoft.Win32.RegistryHive]::LocalMachine 
$RemoteBase = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey($keytype,$server) 
$regKey = $RemoteBase.OpenSubKey($key) 
$regkey.GetValue("LastSuccessTime")