Is it possible to run windows 7 via usb stick and virtual box? I have seen tutorials about putting windows 7 on a memory stick and running it that way but it only works on another windows PC. Is there any way to run windows 7 on MBA this way? My MBA has the 64 gig SSD. I need windows for a very specific reason for work but I don't want to give up using my MBA for everything else. Thanks.