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Wiping a hard drive?





datter
I'm selling an old Pentium II system that's just taking up space and have been told that a simple format isn't necessarily the most secure way to remove any personal information from it.

Any suggestions on how to effectively wipe a hard drive prior to sale?
AftershockVibe
Yup, you can use Boot And Nuke. Download from here:
http://dban.sourceforge.net/

More information on the problem itself can be found here:
http://en.wikipedia.org/wiki/Data_remanence

Sorted Cool
Arnie
Or get Bcwipe and put the BCWIPEPD DOS utility on a bootdisk. You can even run it from the hard drive in DOS mode (assuming Win9x). It wipes the drive 7 times, the last time with random noise. This is according to the U.S. DoD 5200.28 standard for securely deleting files.

(Command for wiping the first disk: bcwipepd w -d0 )
Animal
Personally, I'd recommend using Eraser to securely wipe your files. It doesn't have a flashy interface, but it's a free and very efficient program.
AftershockVibe
Arnie wrote:
This is according to the U.S. DoD 5200.28 standard for securely deleting files.


Not any more, apparently (as in the Wiki page I linked to says) they have to use a deGausser now (a box which generates a very strong fluctuating magnetic field).

However, since you're unlikely to have material THAT sensitive, 7-rewrites will do the trick which is what all the software posted does just in different ways.
Arnie
Oh, I wasn't aware of that. But where's that link? Razz
internetjobs
use dm at zero pulling....
JediPad
The best way is to degauss the hard drive if that is not possible get a program that starts with replacing all of the data on the hard drive with random 0s and 1s and do this at minimum 7 times. There are a lot of different programs but the one on sourceforge is free and is probably the best one for the cost.

Good luck and remember the only safe way is to replace the hard drive then destroy the old one.
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