How to Back-up your Mac OS X with and external drive - Yosemite and El Capitan

How to Back-up your Mac to an external drive using apple built in program called time machine. Learn how to back-up your MacBook Air laptop or desktop to and external drive using Time Machine.

If your hardrive died? Would you lose years of photos, music, videos, email and more? With external drives you can make a backup and with Time Machine (built into Mac OS X) it is so easy to set up.


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