Maurice said:
Hello:
I'm looking to a utility (free if possible) who can format/delete completely
a hard disk, so it's impossible to recover data with any software doing
unformat or undelete.
In the past, using debug it was possible to do low level format.
any help is appreciated.
thanks
Maurice
http://www.dban.org/
http://cmrr.ucsd.edu/people/Hughes/SecureErase.shtml
The Secure Erase project, uses an erasing capability built into
the hard drive itself. Secure Erase is not available on SCSI.
Before using Secure Erase, read *all* the documentation.
There is some topic material about "passwords" you should read.
DBAN has the issue, that it can erase all the drives connected
to the computer. Unplug any drives you don't want erased. A few
people managed to erase their backup drive (and then asked on
the DBAN forum, whether the data could be recovered or not

).
So don't repeat that mistake. Be absolutely sure you know what
is it going to erase, before pushing the button.
If the drives use a HPA (Host Protected Area), that can complicate
erasure. If you didn't put user data up there, there is nothing to
worry about. There won't be too many instances, where an HPA is
involved.
http://en.wikipedia.org/wiki/Host_protected_area
Paul