Running Module on remote machine

Hi, I’m trying to invoke a module to run on a hundreds of remote servers. The plan is I want to kick-off Windows Update on them at once. I have the PSWindowsUpdate module, but the Invoke-WUInstall doesn;t seem to working and the scheduled task just sits there with not much happeneing…

Is there a simple line I can invoke that would mirror the action of clicking ‘Update Now’ in the GUI? As this is all I’m after really.