disabling f1 key

don't know what happend to my laptop but everytime i go into winxp the help and support page keeps on poping up... i think the f1 key is messed up or something.. and somewhere on this website.. there was a regedit help, where you can disable the windows key.. just wondering if there was a regedit thing that someone knows in here where i can permanently disable the f1 key.... any help will be appreciated. thanks..