I just received my macbook pro retina display today and I am trying to install the windows 8 preview with bootcamp. I bought an external hard drive which I plan on storing all of the windows files. It is a 1TB drive that I have partitioned in half, one for windows, one for storage. I'm completely new to Mac OSX and I am having issues with this install. It only lets me use the drive if I make it a single partition. Also how am I supposed to make a windows install disk with no drive? Any help would be greatly appreciated. Thanks.