I had got a new laptop and I was about to go to a class and had to get my laptop set up for the before leaving town. When I went to install my XP guest, I get this message. Setup did not find any hard disk drives installed in your computer. After some digging, I finally found a site that had a great video to give me exactly what to do. If you have this same problem, here is the link for you.
Click here for the answer you've been looking for.