Common questions about your Mac
How do I get support for my MacBook Air? Go to MacBook Air Support.
How do I take a screenshot on my Mac? Press Command-Shift-3 to take a screenshot of the entire screen. Press Command-Shift-4 to take a screenshot of a selected area of the screen. To learn more, see Take a screenshot on your Mac.
Where is my serial number? Choose Apple menu > About This Mac. The serial number is the last item in the list. You can also find the serial number on the bottom of your MacBook Air.
Ask Siri. Say something like: “What’s my computer’s serial number?”
How do I know which model of MacBook Air I have? See the Apple Support article Identify your MacBook Air model.
How can I find the documentation for my MacBook Air? To find the Essentials guide, choose Apple menu > About This Mac, click the Support tab, then click User Manual. From the Support tab, you can also click “macOS Help” to open the user guide for the operating system. For older Mac models, see Browse manuals by product.
How do I get help for an app? When you’re using the app, click the Help menu in the menu bar at the top of the screen.
Where is the safety information for my MacBook Air? See Important safety information for your Mac.
How do I find the technical specifications? Go to MacBook Air Tech Specs, or choose Apple menu > About This Mac and click the buttons at the top.
Ask Siri. Ask Siri for information about your Mac. Say something like:
“How fast is my Mac?”
“How much memory does my Mac have?”
“How much free space do I have on my Mac?”
“How much iCloud storage do I have left?”
How do I check my disk for problems? Use Disk Utility. See Repair a storage device in Disk Utility on Mac in the Disk Utility User Guide.