It depends on what the mass storage controller IS. See Saga Lout's brilliant post here: http://www.tomshardware.com/forum/274306-45-video-controller-compatible-driver-windows-free-download
. Go there and enter the information. This will tell us what kind of MSC that is and what driver you need.
Can you provide make and model of your PC or motherboard? Any other information will probably be useful.