Once that is completed, Time Machine automatically keeps hourly backups for the past 24 hours, daily backups for the past month, and weekly backups for all previous months.

When you first connect the external drive and give Time Machine the thumbs-up to back up your primary disk drive, it makes a complete backup - that can take several hours or days depending on the amount of data that has piled up on the drive. Time Machine is hands-down one of the easiest methods of backup available on any platform. This backup utility is actually baked into OS X, and if it’s enabled through System Preferences, a prompt will appear on your Mac screen when you connect an external storage device to your Mac asking if you wish to use it for Time Machine backups. If you own a Mac that’s running any version of OS X from Leopard (Mac OS X 10.5) to Yosemite (Mac OS X 10.10), you already have Time Machine. This week the focus is on three of the most popular applications for backing up your Mac - Time Machine, Carbon Copy Cloner, and SuperDuper! Time Machine running on OS X 10.10 Yosemite This April, the Rocket Yard will provide you with tips and hints on backing up all of your data - not only the information that’s on your desktop or laptop machine, but your iPhone and iPad as well. In the first Backup Month post, readers were introduced to the helpful 3-2-1 Rule.

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