if you disable the pagefile in any os using ntfs it will still write to the disk, the ntfs file system and most apps or games are dependant on it especially vista but if you disable it then the os will create one at the very end of your drive which is the absolute slowest part so the only thing you gain is increased read/write times thats why the have readyboost for vista, I always though disabling it would give me better perf too but when I did and then loaded up a game and check the taskmanage it was still using the same pagefile size that windows recommended and analyzing my drive with perfectdisk showed there was a pagefile at the very end