Install Windows 8 from a USB Drive, Dual-boot with XP, Vista and 7
 

Back when the Windows 8 Consumer Preview hit the Web, we offered a basic guide on configuring a virtual machine. With Windows 8's Release Preview available and the final version inching toward completion, we figure it's a great time to offer a similarly easy step-by-step walkthrough on installing Windows 8 with a USB drive.

If you're familiar with the process, there isn't much for you to see here, but this should serve as a quick confidence booster for anyone who hasn't installed an operating system recently.

http://www.techspot.com/guides/539-w...and-dual-boot/