If you want a step-by-step walkthrough on setting up a complete Hyper-V networked lab environment consisting of a Domain Controller and five domain member machines, then check out this great in-depth article here.
The lab that you setup using the link above will be used for the “Exam 70-462: Administering Microsoft SQL Server 2012 Databases“ book by Orin Thomas, Bob Taylor and Peter Ward. Now, of course, not all guides/books are 100% error free. You can find the “errata” of the book here.
When you are creating your Hyper-V virtual machines, the book says to keep the 512MB RAM default setting. But, when I created a virtual machine with the 512 MB RAM default, I kept getting “we couldn’t verify the product key…”
After MULTIPLE times at trying to fix the issue, I increased the RAM to 1 GB and the install worked. Just a reminder.