Windows 7 Anytime upgrade

[snaithg]

I have a Windows 7 "Home Premium" 64 bit system and I need to upgrade it (in situ) to Windows 7 Professional (or Ultimate).

Can someone please tell me the Cheapest/Safest way to do this. I would assume that I need to purchase an Anytime Upgrade Key. First investigations suggest that this is not a very cheap option though.

Thanks,

Graham.

[grabben]

Well if the system came with windows 7 then its easy to perform an anytime upgrade but im not sure if its allowed by msfn rules.

[Kelsenellenelvian]

Officially the price is only 90 bucks from MS. That is actually NOT bad at all. The only drawback is you don't get a physical copy of the installation media.