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Mark said:
I am a licensed owner of Professional. I just bought a
Dell notebook with Home Edition which I want to upgrade
to the Professional Edition. Do I have to uninstall the
Hme Edition or can I upgrade from my Professional
software?
If I understand you correctly, the answer is that you may do
neither.
If your copy is XP Professional is installed on another computer,
you can not install it on a second copy at all. The rule is quite
clear. It's one copy (or one license) for each computer. There's
nothing new here. This is exactly the same rule that's been in
effect on every version of Windows starting with Windows 3.1. The
only thing new with XP is that there's now an enforcement
mechanism.
On the other hand, if your copy of XP Professional is not in use,
or if you first uninstall it from where it is, you may do this as
long as it's a retail version. Be aware, though, that the license
for an OEM version restricts it the first computer it's installed
on, and it can never be moved to another machine.
So if yours is a retail copy not otherwise in use, you can use it
either for a clean installation, or an upgrade over the top of XP
Home. If it's an OEM version, and it's never been installed on
another computer, you may use it for a clean installation only.