That's true. Changing from lntel to AMD will definately require a format. Or you can purchase a new boot drive, install windows, then install your old drive while windows is running. It should configure it as a backup drive. I suggest a cheap ssd if you don't already have one. I use this one: http://www.amazon.com/Agility-2-5-Inch-Midrange-Performance-AGT3-25SAT3-60G/dp/B004Z0S6RU/ref=sr_1_2?s=pc&ie=UTF8&qid=1339459122&sr=1-2. It's been flawless so far. Newegg (link broken) has a $10 rebate with this drive making the final price $54.99; I received my ocz rebate on this drive. They require the barcode off the back of the ssd, not the one on the package.