Darik’s Boot and Nuke is a utility that has been designed to work like a boot CD. It erases all content from a hard drive. It is a data wiping software that is popularly known as simply DBAN. The use of this utility ensures your identity remains safe before your computer is recycled. People also use it to remove malware and viruses from their systems as it completely wipes out software from a hard drive. No recovery is possible once data has been shredded using this tool. Large discs take longer to be erased. Get DBAN-1.0.7_1386.exe from here.