Are we talking about 'installing' Vista from scratch using a DVD or are you
attempting to change the product key at the 'activation' screen? During
installation you have a 'next' button rather than a 'continue' button and,
after inputting the product key, if this Next button is grayed out it
usually
means the product key has been inputted incorrectly.
If we are talking about inputting the product key during install what you
could try is selecting the version you want to install (this must match the
version that the product key relates to) and then simply omitting to input
the product key. Press the Next button at the next warning message click No.
You should now see a list of Vista versions to install. Select the version
you have and the installation should proceed. After installing you have 30
days to activate the product. When you come to activate the product you will
have the option to input the product key number that you have. You can also
do this by clicking Start>control Panel and then clicking the System icon.
In the system main window under the Windows Activation section you should
see a link marked 'change product key' this will allow you to insert the
correct product key number.
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John Barnett MVP
Associate Expert
Windows - Shell/User
Web:
http://xphelpandsupport.mvps.org
Web:
http://vistasupport.mvps.org
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