Need restore disk
You should be able to contact the manufacturer to get assistance. Some laptops come with the restore information hidden on a part of the laptop. To make it work you will have to enter whatever keystrokes they direct you to use and the restore will automatically run. If you do need a specific cd, the manufacturer can also tell you what you need. Depending on the age of the laptop, you should be able to order it from them. If they no longer stock the restore cd's, you will have to get a copy of the version of Windows you want to install and install it yourself. If you are using XP or Vista, the cd should have most of the drivers you will need for the laptop. If not you should be able to track down the drivers on the Intenet.