HT204015: About Time Machine local snapshots
Learn about About Time Machine local snapshots
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Helpful answers
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Jan 3, 2016 2:19 PM in response to sb15820by Kappy,Secure Erase has been removed in El Capitan. To erase your old Time Capsule use Airport Utility to erase the drive.
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Jan 3, 2016 2:33 PM in response to sb15820by Bob Timmons,what is the secure way to delete any traces of the backup on the old Time Capsule? The goal is to clean it as if I were going to sell it.
Open AirPort Utility
Select the old Time Capsule
Click Edit in the smaller window that appears
Click the Disks tab at the top of the screen
Click Erase Disk
In the next window, select the Zero Out option. This will replace everything on the drive with zeros
Click Erase
Allow 3-4 hours on average for the process to complete
Once you have done that, click the Base Station tab at the top of the screen
Click Restore Default Settings
That will reset all the network settings back to new, out of the box factory defaults.


