<#
This script runs a remote GPUpdate
Alan Kaplan 8/6/21
#>

param (
    [Parameter(Mandatory = $True)]
    [string]$PCfqdn
)

Try {
    $s = New-PSSession -ComputerName $PCfqdn -ErrorAction Stop
}
Catch {
    Write-Warning $_
    Pause
    Exit
}

invoke-command -ScriptBlock { & cmd /c "C:\windows\system32\gpupdate.exe" /force } -Session $s 

Get-PSSession | Remove-PSSession
Write-Host "Done" -foregroundColor green
Pause