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Performing a "System Recovery"


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#1 bobherr

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Posted 08 June 2011 - 03:14 PM

I have an old IMac that I haven't used in years - I now have an HP. I want to give it away but want to "clean" it first. Can anyone tell me the steps to get rid of all my personal info on it? or refer me to a site that will show the steps?
Thanks!
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#2 keyboardNinja

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Posted 10 June 2011 - 12:25 PM

Boot and Nuke! http://www.dban.org/

Note: if you don't want to wipe the whole hard drive and reinstall the OS, simply deleting your user profile isn't the most secure option.

There are utilities to shred free disk space: http://www.mireth.com/wt/sxme-shred-freespace-mac.html, but that is not 100% effective. Your data can still possibly be recovered.

The only 100% sure way that nothing can be recovered later is to physically destroy the hard drive in some way (magnets, drilling, crushing, etc.), but you probably don't want to go that route as you'd need a new hard drive.

I guess it depends on how far you're willing to go. If it were me, I'd use DBAN and just clean install the OS afterward.
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#3 computerxpds

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Posted 10 June 2011 - 12:45 PM

OS X's disk utility has an option to 0 out free space.
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#4 keyboardNinja

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Posted 10 June 2011 - 12:49 PM

Okay, cool. I didn't know that. :)

Haven't ever needed it before.
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