Primary Hives are at \Windows\System32\Config, and the Profile
specific data is located in each \Documents & Settings\User folder
as NTUser.Dat

"M.I.5¾" <no.one@no.where.NO_SPAM.co.uk> wrote in message
news:483e80fc_1@glkas0286.greenlnk.net...
> Can someone please remind me of the names of and where Windows XP stores
> its registry files?
>
> Im currently trying to run down an obscure problem where the registry is
> being altered whenever the PC is booted, rebooted or awakened.
>