The hard drive is fully preformatted by the factory, so a basic raw format is not needed, and risky if you have the wrong geometry -- this is only an option in early versions of the Hard Disk Tool. As to a partition format that assigns the File Allocation Table, you CAN use the extremely slow full format, but it is not needed to overlay the FAT (vide supra), and a quick format should suffice unless you loved loading tapes in your C64 or can wait several hours while you do something like rebuild the engine in an Old's 442.
