Active KillDisk software (version 9.2) is a powerful tool for securely erasing data from hard drives, USB drives, and other storage devices. It supports a variety of wiping methods, including DoD 5220.22-M and Gutmann, and can also wipe unused disk space to prevent deleted files from being recovered. The software can be booted from a CD or USB drive, making it useful for securely wiping drives that cannot be wiped while the operating system is running.