If I have Windows Vista Home Premium, can I upgrade to Vista Ultimate? How do I? What websites give me Vista Ultimate for free?

You will not get it for free but i have to ask... Why do you wish to do this in the first place?

Only way your going to get it free is a dodgy copy from someone or somewhere...

Is there a GOOD reason to be worth doing this sort of upgrade in the first place?

vister is bad , go back to xp

why is vista bad? i got a vista premium laptop i have no problems whats so ever other than when i run games and try to install they wont work. but then when i right click on the game icon then click run as administrator then it works

you wil NEVER get a real copy of vista ultimate for free, or even for a cheaper price. and if you do manage to download it, it will be blacklisted, meaning its useless.

just go to the store and buy the upgrade, or split it between you and your friend. keep in mind that once you buy the upgrade, you have a number of computers they allow you to install it on.

http://www.microsoft.com/windows/products/windowsvista/editions/default.mspx

Vista is to complicated, xp will be so much easier to use