when you plug the drive up to the computer, it should show up in the "My Computer" list of drives. When you right click on that drive, it should give you an option that will allow you to FORMAT the drive. Once the format windows opens, choose the type you want.
or, click on Start-->Run
Then in the text box, type "cmd"
once there, type in the following line with the correct drive directory.
BE CAREFUL THAT YOU DO NOT FORMAT ANOTHER DRIVE!!!!!!
format [Drive Label] (example: "format H:\" )
once you have entered this, hit the enter key