I saw a couple threads on erasing hard drives recently and got me to wondering about something I heard a couple of years ago. When I bought my new computer, I decided to wipe any personal info from my old computer before selling/disposing of it. I decided to use DBAN, and it seemed to work as stated, however I was later told that using such utilities was “bad” for the computer as it erased the partitions that the manufacturer put in to block access to bad sectors (which I was told all HDs have.) Since they are no longer sectioned off, the computer does not know not to write to these sectors.
I read the faq at sourceforge and it seemed to say that dban does not write over “bad sectors”. It seems to say that it doesn’t even have access to those sectors.
- Is overwriting an HD with such a utility “bad” for the HD?
- Does in erase those “neccessary” partitions? (And can those sectors be sectioned off again?)
- If not, are there similiar programs that do, and should they be avoided?
What’s the dope?