Upgrade version, will it pass an illegal Win xp or 2k install?

Just as the question says, will it check the serial? No need to convict
me for asking,if the prices weren't so ridiculous I would gladly pay for
a full version.I don't need "probably it will check" answers, i need an
answer that is for sure.

The upgrade version of Windows Vista will indeed check the
license of the qualifying Windows version to make sure it
is, in fact, a valid "genuine" Microsoft Windows license.

--
Carey Frisch
Microsoft MVP
Windows Shell/User

---------------------------------------------------------------------------

"Jelle" wrote in:

| Just as the question says, will it check the serial? No need to convict
| me for asking,if the prices weren't so ridiculous I would gladly pay for
| a full version.I don't need "probably it will check" answers, i need an
| answer that is for sure.

Carey Frisch [MVP] wrote:
> The upgrade version of Windows Vista will indeed check the
> license of the qualifying Windows version to make sure it
> is, in fact, a valid "genuine" Microsoft Windows license.
>

And it probably will do it in a fashion similar to how Windows Defender
validated an install.