and more: "... erasing past history is simply a matter of writing zeros over
the entire disk before installing the operating system from installation
media. After that, no remote intruder is going to be able to see files from
a previous life of the machine. Overwriting with zeros also has the benefit
that disk image copies compress better, and that deleted files are easier to
find."
From:
http://www.porcupine.org/forensics/f.../chapter4.html
Of course, the "past history" remains available for those who get the actual
HDD; only physical destruction of the HDD would make that data
unrecoverable... of course, other machines on the network will still
preserve some of your "history."
Michael
"Phillips" <> wrote in message
news:94552096-D17F-4FF5-A389-...
> I'll quote from some abstract: "Disk drive capabilities and processing
> power are steadily increasing, and this power gives... the possibility of
> using disks as data processing devices rather than merely for data
> transfers."
> Michael
>
> "John Whitworth" <> wrote in message
> news:...
>>
>> "Phillips" <> wrote in message
>> news:0AD62382-4B12-4DC9-A2B0-...
>>> Download some HDD utilities - major HDD manufacturers have such tools on
>>> their websites. Then, if you are sure you do not need the hidden
>>> partition, zero out (write 0's) on the entire HDD... will take a few
>>> good hours on a 1TB HDD - leave it overnight, maybe. Now, you have a
>>> pristine HDD (no worries about junk, malware etc.
>>
>> Absolutely no point doing this whatsoever. How exactly is some old
>> malware (that still exists but has no pointers to it on the disk
>> directory) going to become active? It's just a collection of unloved and
>> unused bits and bytes. If your OS suddenly looks somewhere it's not
>> supposed to on your hard disk, then you have bigger problems than
>> malware!
>>
>> As I said before, the only reason to worry about old inaccessible data is
>> if you think police forensics are going to crawl all over your drive. Or
>> if you are disposing of a PC, and have confidential data on it.
>>
>> JW
>