I don't have any idea why the reaction would occur if you have not made any
This can be solved easily though. See the following website for a
description of the issue and how to fix it.
Product Key Already In Use When Attempting To Activate Windows Vista: http://vistasupport.mvps.org/product...ady_in_use.htm
"DeathAbyss" <DeathAbyss@discussions.microsoft.com> wrote in message
>A message popped up telling me there was a hardware change and i had to
> reactivate the product key. When i tried to reactivate, a message came up
> telling me the product key was already in use and i needed to purchase
> another one.
> I had made no hardware changes, nor did i install any new programs that
> be counted as hardware changes.
> How do i reactivate my vista without buying a new product key?