You need to put the drive into the XBOX, Run the X3 utility and format the drives. After that you need to use a boot disc (evox, avalaunch whatever) and copy those files to the c: drive. While you still have your original drive in. It is a good idea to FTP to your XBOX and copy all of the drives and files so you can use them later. Once you install and format all your drives, copy over the backups you made, and away you go. I'm sure this is covered in almost every forum out there.....
