Sometimes these laptops have a partition on them to restore the computer to factory defaults without the need of cd's. As you turn your computer on, you could try holding down the number 1 key until the computer beeps madly at you for a few seconds. There will be a menu which says "repair your computer", inside that, usually there is a toshiba recovery wizard. This is how we go about factory restoring display models at work when we sell them. I hope this helps :)
Rick, January 2009