In
Paul D said:
I have an old computer that I'm going to donate. I want to
completely erase the C: drive. I don't see any options in XP
to do
this and I also tried creating an MS-DOS startup disk but when
it
boots to A: it does not see C:.
That's becasue your drive is NTFS, and MS-DOS can't see an NTFS
drive.
How can I accomplish this?
It all depends on how paranoid you want to be.
1. You can simply reformat the drive and reinstall Windows. That
makes it difficult for anyone to recover anything.
2. You can run one of the several third-party utilities that
overwrites the drive with zeros multiple times. That' makes it
much harder to recover anything.
However note that there exists sophisticated techniques that
sometimes work at recovering data even from drives overwritten
multiple times. That's why the US government doesn't rely on any
such software techniques, but physically melts drives containing
really sensitive data in a furnace.
So there's no such thing as perfection, and you have to decide
what's good enough. If it were me, step 1 would be fine. It's
highly unlikely that someone you donated a drive to would know
how or want to go to the trouble of looking for anything on it.