New
#31
Apparently OEM Home Premium also allows multiple changes as I have restored the drive multiple times on Vista and 7 rc and the auto reactivate worked fine. Have not had any reason to restore since Win7 Ultimate or Home Premium RTM installed.
In a weird twisted sort of way it does make sense that the business version would not allow multiple reactivation's. This forces business's to not repeatably upgrade their machines but to instead purchase new ones that come with new licenses whereas most home users will not change machines every 3 years or so and will definitely upgrade multiple times before purchasing a new machine.