Darik’s Boot And Nuke
Data Wiping Software
DBAN is free erasure software designed for the home user. It automatically deletes the contents of any hard disk that it can detect. This method can help prevent identity theft before recycling a computer. DBAN is also a commonly used solution to remove viruses and spyware from Microsoft Windows installations.
via Darik’s Boot And Nuke | Hard Drive Disk Wipe and Data Clearing.