You probably don't.
Since Home Premium came with the computer it is probably OEM.
If so, it can not be transferred to a different computer.
Normally OEM is permanently tied to the original computer regardless
the condition of the original computer.
One of the many reasons you paid less for OEM.
Is Ultimate an Upgrade?
If so Home Premium is also bound to the computer by the upgrade.
Consider returning the computer and purchasing one configured the way
you need, probably cheaper in the long run.
Jupiter Jones [MVP] http://www3.telus.net/dandemar
"SRGroman" <SRGroman@xxxxxx> wrote in message
> My new laptop came with Home Premium pre-installed, and I also
> Ultimate sparately. How do I transfer the Home Premium to another
> before I upgrade to Ultimate on my laptop? (Notice that both Vistas
> legitimate and have separate Keys.)