If you're actually worried about it, destroy the drive (hammer, bullets etc).
If you aren't going to go that far it only matters a little what you do because something will always be recoverable.
This message has been modified
Originally posted on May 5, 2016 at 12:10:57pm
Message parent changed from http://www.cougarboard.com/board/message.html?id=15835843 to http://www.cougarboard.com/board/message.html?id=15835804 by on May 5, 2016 at 12:11:13pm