Friend is selling his old computer

[sao123]

Is there a free software to erase all the data on the hard drive?
I imagine he'll want the equivolent of the DOD cleaning specifications...

someone help me out.

 

[FoBoT]

you bet
http://dban.sourceforge.net/

Please clearly label your DBAN boot media because it is dangerous.

http://dban.sourceforge.net/features.html

 

[MrWizzard]

You don't need special software to do it, but the special software will save you time. Because it's automated.

Have him do a full format, not quick, and write data to the whole hard drive.

Repeat 4x.

This is what I heard at least.