I am dual booting 13.04 with Windows 7 currently. Getting frequent crashes. Especially when I use Firefox. Chrome is the only thing that works, and especially with videos, however, still get a crash from time to time. Thought since I'm new to Linux I would buy a large capacity USB drive and try to boot from there on my multiple computers rather than install Ubuntu on all of them. Looking for advice on how to uninstall from my system properly and get my partitioned drive back onto windows, As well as how to install on a USB to run. Also looking for advantages and disadvantages of doing this if anyone would be so kind to share. Thanks in advance.