Is it possible to install Windows 7 on an internal disk via Boot Camp and then remove this disk and use it as an external drive? I have two drives for my mini, one in use and one in an external case; unfortunately, neither have room for everything plus Windows. If the answer to this question is no, then I'll buy a bigger drive. I'd just like to avoid this if possible (I already have a ton of external drives and not enough ports to plug them into). Thanks in advance for your help!