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Start fast: A two-page Quick Start overview helps you read lightly or more deeply, depending on your needs. You’ll experience an easy upgrade and quickly deal with post-installation quirks with these topics: It also looks at upgrading from the El Capitan public beta and at “upgrades” that involve moving your data to a new Mac from an old Mac or Windows PC. The book covers upgrading from 10.10 Yosemite all the way back to 10.4 Tiger. You’ll also find full installation directions, plus advice on over a dozen things to do immediately after installation and troubleshooting techniques. Gain confidence and stay in control as Mac guru Joe Kissell explains how to ensure that your hardware and software are ready for El Capitan, prevent problems by making a bootable duplicate of your main drive, eliminate digital clutter, prepare your Mac, and decide on the best installation method for your particular situation.