Originally Posted By: Dignan
If I connect a drive that had Vista or 7 on it to another Vista or 7 computer (or, I think, if I connect an XP drive to an XP machine), I'm denied access to the user folder.

However, every time I've connected a drive that had XP on it to a Vista or 7 computer, I'll open the user's folder, get a brief message saying it's protected or something, and then the system works for a little bit and voilą, I have access to the folder and all unencrypted files within.

The SID that owns the directory doesn't exist on your computer but it won't ignore the ACLs on the directory either. You have to tell it to take ownership. Only problem with this is if you try and plug the drive back into the PC and boot off it. It won't like the changed owner.