I know how to install Windows 7 from an USB stick, but a friend of mine was thinking of getting a media center (small PC?), and having a 2Tb drive acting as a "secondary", whilst having Windows 7 installed and running from a USB stick. Yes, I have googled, but first best answer I got was a bit..strange.. It said I could use a 4-6Gb USB stick. But I found that to be a small amount (could be wrong). But is this possible otherwise?