I have purchased a program that can undelete files on the free space
on my hard drive.  It doesn't give me the option to completely delete
these files.  How can I erase files on that have been deleted through
the normal delete process but are still on my hard drive?

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Request for Question Clarification by rainbow-ga on 30 Aug 2005 10:33 PDT

Would something like this interest you?

http://www.safechaos.net/cs.htm

Rainbow~

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Request for Question Clarification by tutuzdad-ga on 30 Aug 2005 11:03 PDT

From my own experience prefer WINDOW WASHER. I use it on my own
computer not because I have anything I wish to hide but because with
just one click it almost instantly empties trash, cache, temps and
history, amd it deletes, cleans up, and over-writes files so that they
are completely deleted and that space can be used fo rother more
important things.

WINDOW WASHER
http://www.downloadatoz.com/wwasher/

Let me know if this works as an answer.

Regards;
tutuzdad-ga

It all depends on how completely you wish to delete the files, once
data has been written to a Hard Drive to some effect it will remain in
the magnetic disk. It is possible to bring information back from 20
low level formats, but its costly and annoying.

But if you really mustnt have anyone reading your files, extreme
measures must be taken.
The Australia Army (and defence force I believe) do take extreme
measures, when they wish to delete data completely - they take the
magnetic disks and place them on a grinstone till they are worn away
to dust.

I have read volumes about the dusting of the Australian magnetic disks
and am very familiar with their techniques.  With all due respect to
their technology and knowledge I am afraid that using a grindstone to
wear the disks into dust only works on Australian disks (and a few
other non third world countries disks). Most of the more sophisticated
disks are immunized from this very basic data deletion processes. 
There are many freeware programs and solutions that will completely
restore these piles of dust and extract any and all files contained on
them. I appreciate your research into this very important question but
next time PLEASE be sure of your responses.  Make sure they are
accurate, this is the only way sharing information over the net works.

Secure file deletion is a side benefit of a free encryption tool I
wrote about here:

http://www.andybrain.com/archive/unbreakable_encryption.htm

Right-click your file and choose "Shred and delete". Note that this is
not anywhere near DoD specs, but the author addresses why that is
here:

http://axcrypt.sourceforge.net/faq.htm#passes_wipe

I've always found Eraser does a fine job without interfering with
other software.  Free download here:
http://www.tolvanen.com/eraser/download.shtml

The best free one I came across is a download by IBM
It deletes the entire drive volume though, but doesn't get any better
than this: it uses the US Department of Defense clearing standard DOD
5220.22-M.
here is the link
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=TVAN-SDD

simply use tuneup utilities it offers other features for system
management and also deletes files