Upgrade to macOS Sierra
macOS Sierra adds new features that let you do more than ever with your Mac.

Featured Topics
Move your content to your new MacBook
Learn how you can migrate your content from another computer to your new MacBook (Retina, 12-inch, Early 2015) and later.
Move your contentBack up your new Mac
There are several ways to regularly back up the files on your Mac.
Start backing upMaximize Battery Life
“Battery life” is the amount of time your device runs before it needs to be recharged.
Learn about battery lifeAbout Mac notebook batteries
Learn more about the battery in your Mac notebook including how to optimize the battery life, troubleshoot, and get service.
Learn about your batteryDetermining battery cycle count for Mac notebooks
Learn how to determine the number of cycles your Mac notebook's battery has.
Learn about cycle countsPrint from your Mac
Learn how to print pictures and other documents from your Mac to a printer.
Learn about printingConnect an AirPrint printer to a Wi-Fi network
You can connect an AirPrint printer to a Wi-Fi network for wireless printing from your Mac, iPhone, iPad, or iPod touch.
Learn about AirPrintResolve printer issues on your Mac
Follow these steps if you can't get your printer to work with your Mac.
Get help for printer issuesCheck for Wi-Fi issues using your Mac
Your Mac can analyze Wi-Fi connections for certain issues, then recommend solutions.
Get help connecting to Wi-FiUse AirDrop to send content from your Mac
With AirDrop, you can wirelessly send photos, videos, websites, locations, and more to a nearby iPhone, iPad, iPod touch, or Mac.
Learn more about AirdropUse AirPlay to display video from your Mac on an HDTV
If you have an Apple TV, you can use AirPlay to wirelessly stream video to your HDTV from Safari or QuickTime Player, or use your HDTV as a Mac display.
Use AirPlaySearch for more topics
On Mac, see app power usage
Click the battery icon in your menu bar. If apps are using lots of energy, you'll see them listed under “Apps Using Significant Energy.”

macOS Support
macOS is the operating system that comes with your Mac. Learn about and get help with apps, updates, services, and more.

Resources
Learn how to use all the built-in apps and features that come with your MacBook Air.
Find all the technical specifications for your specific MacBook Air model.
Update OS X and other apps with the Mac App Store on your Mac. You can also manually download updates.
MacBook Air Community
Contact Apple Support
Help me with MacBook Air
Answer a few questions and we'll recommend a solution for you.
