I have, windows vista premium, I like to upgrade to windows vista business, do I

[Guera]

need the ful version? Do I need the full version or just the upgrade?

 

[Sam T]

Either way it is expensive.

 

[tyler w]

Windows any time upgrade
just search it in your start menu on vista
just buy from there and you'll have it in no time.

or just go to Microsoft website and do it there:
http://www.microsoft.com/windows/windows-vista/get/anytime-upgrade-overview.aspx