The Recovery discs came with the computer, (or you were given an option to create your own when you first setup the computer) and they will allow you to reformat the machine and reinstall the operating system and all programs back to its factory condition.. Simply place the first disc in the drive and restart the computer.. It should then give you the recovery options.
Hope this helps.
i have a fujitsu lifebook laptop, and somehow when my kitten walked across the keyboard, it messed up my harddrive or something. now all it does is turn on & boot up to the fujitsu screen. how do i reformat the harddrive??? please help!!! thanx!!!