The Windows XP license becomes incorporated in the
Windows Vista upgrade license which then completes
a fully licensed product. Thus, the Windows XP license
cannot be used again if you want to install Windows XP
separately without Vista.
--
Carey Frisch
Microsoft MVP
Windows - Shell/User
---------------------------------------------------------------------------*-----
<> wrote in message news: ups.com...
On Jul 5, 8:06 pm, "Carey Frisch [MVP]" <cnfri...@nospamgmail.com>
wrote:
> You would need to return your "upgrade version" of Windows
> Vista Premium and purchase a "full version" of Windows Vista
> Home Premium if you wish to perform a "clean install".
>
> --
> Carey Frisch
> Microsoft MVP
> Windows - Shell/User
Not true. If you have Windows 2000 or XP Professional, you need to do
an clean-install, but you can still use VHP Upgrade.
http://www.microsoft.com/windows/pro...radepaths.mspx
As it seems, it does a clean-install, but checks if you have xp or
win2000 installed on the HD, if not, it won't install.
I just ask, how the "invalidation" works, (if it does at all), and how
does it work when using clean-install-upgrade.