http://technet.microsoft.com/en-us/library/7d837d88-6d8e-420c-b68f-a5b4baeb5248.aspx
http://community.spiceworks.com/topic/284694-hp-z220-loses-intel-graphics-driver-after-sysprep
http://www.petenetlive.com/KB/Article/0000314.htm