A way to erase a Mac that appears to lack erasure options


I’m trying to securely erase my terrible sad iMac before donating or recycling it. It’s my antique workhorse—going for walks 10.6.eight. Disk Software’s Erase Protection options is grayed out. I haven’t any OS X disk, and there’s no Recuperation HD.

It’s admirable to erase your device before you sell—mainly with at ease erasure—to avoid leaking personal information to someone who buys it or obtains the disk force. While the odds are likely very low a person could be capable of exact facts (or be inquisitive about it), you can attempt to reduce the ones odds to what’s successfully zero.

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Susan has a number of alternatives of How to continue, but there’s a piece of navigation along the manner. She’s going for walks 10.6.eight (Snow Leopard), which didn’t encompass Restoration HD. Security options in her version of Disk Application is grayed, due to the fact you may’t erase a disk from its startup extent. (That option is usually unavailable for SSDs, however an older iMac received’t have an SSD.)

Here are the very best methods to erase that drive securely by using diploma of problem:

Use Target Disk Mode. With two Macs that both have Thunderbolt or FireWire ports, connect them with the correct cable, and comply with Apple’s commands (both maintain down the T key after restarting the one to erase or use Startup Disk on that computer earlier than restarting it). The Mac to erase mounts as a force, and Disk Software may be used with it.

Install OSX on an external pressure or borrow one with OS X mounted. Booting off that force will also allow erasing through Disk Utility.

Upgrade to a more recent version of OS X and use Healing HD. Snow Leopard with the Mac App Keep established must will let you down load at no cost a later model of OS X. All variations after Snow Leopard encompass and will Set up Healing HD, from which you could then boot and run

iMac models released starting in 2010 can use Net Recuperation, however first need to be upgraded at the least to Lion and some need a firmware replace installed, so that’s not the only path to pursue.

A associated question got here in from Becky Steinke, who become looking to erase a 2008 MacBook. She tried to use the Restoration HD startup (retaining down Command-R after restarting) and had no luck. Each 2008 and later MacBook Pro and MacBook can Installation Mac OS X 10.7 Lion, which must be capable of Deploy the Healing partition. If possible, Improve it to Lion, restart, and use Healing HD to erase, or use one of the other alternatives above.
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