I often set up servers in Hyper V on my laptop (running windows server 2008) to test varoius software.
Is there a way in powershell to build an image in Hyper V and run windows update on that image? Does anyone have a script that they could share?
You can create a WIM image of the virtualized operating system, and run offline updates against it with DISM.
See here for more information: http://blogs.technet.com/b/configmgrdogs/archive/2012/02/15/applying-windows-updates-to-a-base-wim-using-dism-and-powershell.aspx