[Help] Win 2008 R2 Host

[ScapeOfLegends]

I am trying to run a VM with win 7 ultimate under a Win2008 R2 server.
Whenever i try and run the setup it just says "No drives were found. Click load driver to provide a mass storage driver for installation"

No idea how to fix this... I have used virtualbox before on my personal computer and it installed the same thing just fine..

Edit: I fixed the problem.. Well not really i just went around it. i took the VM i had from my computer and moved it to the win2008 server and just added a new vdi to it for more space