You cannot apply a VLK key to an OEM or retail copy. You would have to
reinstall using VLK media. Even then, if it's a widely-pirated (and therefore
blacklisted) VLK key you will not be able to access Windows Update, etc.
using it.

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"This is a wonderful computer. It''s 20yrs old and absolutely reliable.
And, in all that time it''s only had four mobos, six processors, two cases,
seven OS''s ...."


"Mariposa" wrote:

> I recently just bought a used comp. from a friend and the copy of Windows XP
> is not valid. I recently had a friend who has a VLK borrow me their disc and
> the key. How do I go about changing the product key on comp to the new one