Как Уменьшить крупный Hyper-V VM

$computername = Get-Content H:\computers\Computers.txt;
$password = type H:\Powershell\MyPassword.txt | ConvertTo-SecureString
$cred = New-Object -TypeName System.Management.Automation.PSCredential -argumentlist “domain\user”,$password
$filename = "{0:yyyy-MM-dd} start" -f (Get-Date) 
$tid = Get-Date -f HH:mm:ss



function StartIfStopped([string]$ServiceName) {
    $Service = Get-WmiObject Win32_Service -computername $computername -cred $cred -Filter "name='$ServiceName'"
    if (!$Service) {
        # Service is not installed
        Write-Host "$ServiceName is not installed on $computername."
    } else {
        # Service is installed
        if ($Service.State -eq "Stopped") {
            if ($Service.StartMode -eq "Disabled") {
                Write-Host "Cannot start service $ServiceName as it is disabled." 
            } else {
                #Write-Host "Starting service $ServiceName ..." 
                Write-Output "$tid Starting $ServiceName ." >> H:\logfiler\$filename.txt

                #virker kun lokalt på servere       
                #Start-Service $ServiceName

                #virker på remote servere også i andre domainer 
                (Get-WmiObject Win32_Service -filter "name='$ServiceName'" -computername $computername -cred $cred ).StartService()

            }           
        }  else {
            #Write-Host "$ServiceName is already running."
            Write-Output "$tid already running $ServiceName." >> H:\logfiler\$filename.txt
        }
    }
}

StartIfStopped 'BTSSvc$BizTalkServerApplication'
StartIfStopped 'BTSSvc$TASMSMQHost'
StartIfStopped 'BTSSvc$TASProcessingHost'
StartIfStopped 'BTSSvc$TASSendHost'
StartIfStopped 'BTSSvc$TASTrackingHost'
StartIfStopped 'BRNTService'
StartIfStopped 'TimerService'
StartIfStopped 'BouncedMailTracker'
StartIfStopped 'CMToolService'
StartIfStopped 'CalculationExcelService'
StartIfStopped 'ControlNTService'
StartIfStopped 'EnvelopeService'
StartIfStopped 'PrinterService'

Обновление на сценарии, я получил его работа, но теперь мне нужен он, чтобы войти в систему несколько серверов и запустить сервисы.