The computer I want to erase has no operating system. What can I do?

Blancco Drive Eraser contains its own Operating System. The software itself is booted by using USB or CD. There is no need to have any OS pre-installed on target machine (i.e Windows, Linux). Note that Blancco Drive Eraser erases the computer's hard drive(s) and leaves no data behind. If you want to "start using" the computer again, a new operating system has to be installed.