$servers = Get-Content C:\Tools\serverList.txt
$creds = Get-Credential

ForEach($server in $servers){

  $option1 = "/source wu"
  $option2 = "/contenttype criticalonly"
  $option3 = "/restart none"

  Copy-Item \\tkfiltoolbox\Tools\23649\3.0.37.2319\ '\\STITSNAPBLD105\C$\localbin' -Recurse -Force

  $var = invoke-command -ComputerName $server -ScriptBlock { param($option1,$option2,$option3) C:\localbin\3.0.37.2319\CritFix.exe $option1 $option $option3} -Credential $creds

}

 <#$computernames = get-content  c:\tools\Serverlist.txt
 foreach ($computername in $computernames)
 {
 $baseKey = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey("LocalMachine",$computername)
 $key = $baseKey.OpenSubKey("Software\Microsoft\Windows\CurrentVersion\Component Based Servicing\")
 $subkeys = $key.GetSubKeyNames()
 $key.Close()
 $baseKey.Close()
 If ($subkeys | Where {$_ -eq "RebootPending"})
 {
  Write-Host "There is a pending reboot for" $computername
  Restart-Computer -ComputerName $computername -confirm -Force
 }
 Else
 {
  Write-Host "No reboot is pending for" $computername
 }
  }#>