I can't boot from it at all. I've also tried it in both Virtualbox and Microsoft Virtual PC. Both to no avail. I have a partitioned yet unformatted(RAW) section of my hard drive, but can't use it because I can't boot from the cd at all. This isn't really convincing me that Windows 7 is going to be better. And, interestingly enough, it appears that any support from Microsoft will now cost you, about 60 bucks. Rip-off.