Freeware version includes Windows, Linux or MacOS X executables, User Guide, License as well as Console Boot Disk ISO image (Windows & Linux only) containing KillDisk pre-installed and bootable disk creator for CD/DVD/Blu-ray & USB disks. With Boot Disks you can boot up and sanitize any PC without needing to boot to the computer’s operating system first. System disk (where Windows OS is usually installed) can be easily sanitized this way, which isn’t possible when you run KillDisk under your computer’s Operating System.
Active@ KillDisk

Source: KillDisk Freeware