To access it, click on the Apple icon on the upper left hand corner of your screen, then click on “About This Mac.” Most of the information we need to determine this is found on the “About This Mac” screen. You’ll also need to make sure your Mac is capable of running Yosemite (we’ll show you how below), and you’ll want to make sure you have an iTunes account to purchase the update.īefore installing the update, you need to make sure that your machine is compatible with Yosemite. To backup your data, you’ll need an external hard drive or a Time Capsule with at least the same amount of storage as your hard drive. In this post, we’ll take you through the steps required to protect your data by backing it up, upgrading the OS, and getting started with the latest version of OS X.īefore you get started, you’ll want to make sure you have everything you need. Apple’s latest desktop operating system, OS X Yosemite, is available today.