When I first decided to jump into the Win 8 Dev. Preview I decided, based on recommendations of fellow members in the Windows Secrets Lounge, to install Win 8 Dev preview into a virtualization environment. I downloaded Virtual Box from Oracle and attempted to install it in my Win 7 Ultimate OS. The first error I got was my system did not have virtualizations enabled. When I looked at my Bios, there was no area to enable virtualization. I was told I would have to update my Bios to allow this. When I looked at my PC with Win 7, there was no Bios update offered. Then I remembered (Look at my pic, I'm old and gray. Had to get my brain cell to fire.), my PC originally came with Vista and I upgraded (clean install) to Win 7 Ultimate. When I checked my PC with Vista, low and behold there was the Bios update. Flashed the Bios and I was able to enable virtualization. Success, Virtual Box installed properly and I was able to install Win 8 within the virtual environment.