Ok, so I have a goal to install a new server with only the Hyper-V role on windows 2008 server core setup which is the best recommended way to take all the advantages of the Server resources and hardware.

My surprise was that after installing the Windows 2008 R2 Core server I only got a command prompt window!!!

So, how do I enable Hyper-V, looking at different blogs I found this one which told me the right steps.

http://blogs.technet.com/b/jhoward/archive/2008/03/29/how-to-add-the-hyper-v-role-to-a-windows-server-2008-server-core-machine.aspx

Thanks John!

Basically the command to run at the command prompt is

ocsetup Microsoft-Hyper-V

Ok, so after restarting the server I got the same command prompt back again, how do I open the Hyper-V manager?

You will need to use another client computer with for example windows 7 and download and install the Remote Server Administration Tools for Windows 7 with Service Pack 1 (SP1)http://www.microsoft.com/download/en/details.aspx?id=7887