Time Machine and iCloud are two built-in backup systems that are easy to set up and use. For a Time Machine backup, Apple recommends having an external drive with twice the capacity of your Mac.

You can restore your Mac using Time Machine and an external hard drive. Time Machine automatically creates backups of your Mac every hour.

Click on the "Use as Backup Disk" button in the dialog box that appears when the computer recognizes the hard drive. Time Machine now begins making an initial backup copy of your MacBook Pro.

Exclude your Downloads folder to give Time Machine more breathing room. Aperture Files At press time, Apple reported conflicts between its photo-management program and Time Machine.

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Because Time Machine maintains an active state on volumes it uses, you may need to disable Time Machine (in System Settings > General > Time Machine) in order to repair a backup volume.