Just follow the 'How to activate Windows XP by phone' instructions here:
http://support.microsoft.com/kb/307890
--
~Robear Dyer (PA Bear)
MS MVP-Windows (IE, OE, Security, Shell/User)
Lisa wrote:
> Hi, I've recently installed xp home onto a laptop and bought the license
> and
> product key to activate it which worked just fine.(cd not arrived in the
> post yet) however I had to do a system restore which has now taken me back
> to the windows needing activating again and the product key won't work as
> it says it has already been used once.I tried to undo the restore but this
> has made no difference and it still wants activating.Does any one know
> what
> to do other than having to buy another license
> Thanks Lisa x