Ok I'm sorry I don't have much to go on either only because its not letting me do anything, all I know is its an hp wit windows 7 when I force it to turn on and of it only shows black screen no warranty and I can't put it on safe mode or any other mode for that matter :-( I have a windows7 64bit cd but even when I put a cd in the drive it runs over and over again, nothing elso not even the welcome screen