If you booted from DVD and disconnected all other drives then there should only be 1 disk in the list which should be 'Disk 0'. The type in 'list disk' and hit 'enter', This should give you a list of all disks on your system. If you are doing full install then unplug every hard drive except the one you want to install Windows on to, this way you avoid accidentally cleaning any other drives as cleaning a drive removes everything off it.īoot from your Windows install disc, when it gets to the screen where it asks what language you want to use hold down the 'Shift' key and hit 'F10' This should bring up a DOS Command Prompt window. Best way to remove everything is to use Diskpart in a DOS window and clean the disk. Just doing a Standard format in Windows does not remove all the information.