Funny thing I discovered about trashing things with OS X the other day with a good mac buddy of mine...
For quite some time, I had wondered why my mac took soo long to empty the trash. By comparing my settings with my mac buddy's mac, I was able to discover that I had left the option "Empty Trash securely" on the whole time! (I do remembered a time when I was playing around with finder options and turned it on to see what would happen without reading about it, lol) You think I could have checked this earlier?! Oh well, at least I know all my past deletes are definitely gone...
Why "Securely empty your trash"?
Very simply, it for those of us that are a little more paranoid than the rest. If you empty your trash securely, OS X not only removes your file from your drive but writes meaningless data over the same area several times to make sure it is not there. What this means, is that data recovery people cannot recover anything from your drive. I'm not a recovery expert but usually when you delete your files (even empty them from trash), a good portion of it is still recoverable, this is the same for PC users as well.
How to turn on/off the "Empty Trash Securely" option...
1. Make sure Finder is selected.
2. Go to the Finder Menu and select the option "Preferences..."
3. Select the "Advanced" tab
4. Check/uncheck "Empty Trash securely"
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