This Microsoft Test Lab Guide (TLG) provides step-by-step instructions to create the Windows Server 2012 Base Configuration test lab, using computers running Windows Server 2012 and Windows 8. For a test lab based on physical computers, you can image the drives for future test labs. For a test lab based on virtual machines, you can create snapshots of the base configuration virtual machines. This enables you to easily return to the base configuration test lab, where most of the routine infrastructure and networking services have already been configured, so that you can focus on building a test lab for the product, technology, or solution of interest.
Download the guide from here – http://www.microsoft.com/en-us/download/details.aspx?id=29010