Darik's Boot and Nuke for floppy disks and USB Specifications
Delete data on hard disks with this portable version of DBAN.
Darik's Boot and Nuke ("DBAN") is a self-contained boot disk that securely wipes the hard disks of most computers. DBAN will automatically and completely delete the contents of any hard disk that it can detect, which makes it an appropriate utility for bulk or emergency data destruction.
DBAN is a means of ensuring due diligence in computer recycling, a way of preventing identity theft if you want to sell a computer, and a good way to totally clean a Microsoft Windows installation of viruses and spyware. DBAN prevents or thoroughly hinders all known techniques of hard disk forensic analysis.
Configure, manage, and scan hard disk partitions.
Remove unwanted files from PC and free up disk space.
Edit and recover partitions, manage multiboot environments, and optimize disk usage.