G
Gene E. Bloch
That's why I use Eraser, http://sourceforge.net/projects/eraserHi, Char.
Thanks for the explanation. It mostly fits with what I already knew.
Back in the day when 20 MB was a giant HDD and we were still using MS-DOS
and FAT(12) and Peter Norton really wrote Norton Utilities, especially
DiskEdit, I spent many tedious hours reading my disks, byte by byte. I was
amazed at how much "erased" data was still there. Nowadays, I seldom look
that closely at my disks, but I'm confident that many of my secrets that I
"deleted" months or even years ago are still there and readable by anyone
with the right tools (Yes, they are still available and some are built right
into Win7, as I'm sure you know.) and just a small amount of skill. (Even
before MS-DOS and hard drives, I did the same things on floppies with
SuperZap and other utilities for my TRS-80s. Aah...memories! <g> )
RC
There are other such programs.
I usually only erase disks or their free space when I am finished with
them, especially if I'm going to give them away.