Now that 64 bit Windows has matured somewhat and support for both apps and drivers are a lot better, I've been considering upgrading. I've used Linux under 64 bit quite a lot, and decided that I'd make the move with Windows as well. What I want to know is, are Microsoft still honouring the upgrade to 64 bit by having you resign the 32 bit key. So effectively, is the 32 bit product key that you once owned (after having upgraded) useless? I can't seem to find anything about it on the MS website. Or do I have to purchase the full version again?
All comments or linky appreciated