you cant upgrade from 32bit to 64bit... you have to format ![Sad :(](http://www.tekforums.net/Smileys/teksmileys/sad.gif)
dont know if the 32bit keys work in 64bit... i doubt they do ![Sad :(](http://www.tekforums.net/Smileys/teksmileys/sad.gif)
Its the upgrade disk Im on about. Sorry should have made it more clear.
Ive heard a few people say they have just used the 32bit and got the 64bit media and it has work ok. But this was on a full version not an upgrade.