The "known limitations" section of this MS KB http://support.microsoft.com/kb/931696/en-us
(all the way at the bottom) knocks you out of the box twice:
1. Does not work in dual boot situations
2. Does not transfer from one disk to another on the same computer.
Personally I have not yet had a chance to try this utility, but if they specifically
say it won't work, I have to think it really won't work. :-(