远程安装windows更新

$MSUs = @('https://download.microsoft.com/download/D/6/0/D60ED3E0-93A5-4505-8F6A-8D0A5DA16C8A/Windows8.1-KB2919442-x64.msu',
'https://download.microsoft.com/download/2/5/6/256CCCFB-5341-4A8D-A277-8A81B21A1E35/Windows8.1-KB2919355-x64.msu',
'https://download.microsoft.com/download/2/5/6/256CCCFB-5341-4A8D-A277-8A81B21A1E35/Windows8.1-KB2932046-x64.msu',
'https://download.microsoft.com/download/2/5/6/256CCCFB-5341-4A8D-A277-8A81B21A1E35/Windows8.1-KB2934018-x64.msu',
'https://download.microsoft.com/download/2/5/6/256CCCFB-5341-4A8D-A277-8A81B21A1E35/Windows8.1-KB2938439-x64.msu'
)

foreach ($MSU in $MSUs) {
$FileName = "C:\Temp\$(Split-Path $MSU -Leaf)"
Write-Host "Downloading package: $(Split-Path $MSU -Leaf)"
(New-Object System.Net.WebClient).DownloadFile($MSU, $FileName)
Write-Host "Installing package: $(Split-Path $MSU -Leaf)"
Start-Process wusa -ArgumentList "$FileName /quiet /norestart" -Wait
}

我试图用下面的命令执行脚本

Invoke-Command -Credential $cred -ComputerName 10.xx.xx.xxx -ScriptBlock { C:\\Temp\\1_KB.ps1| write-host}