System Preferences on your Mac
System Preferences is the place where you personalize your MacBook Air settings. For example, use Battery preferences to change sleep settings. Or use Desktop & Screen Saver preferences to add a desktop picture or choose a screen saver.
Customize your MacBook Air. Click the System Preferences icon in the Dock, or choose Apple menu
> System Preferences. Then click the type of preference you want to set. To learn more, see Customize your Mac with System Preferences in the macOS User Guide.
![The System Preferences window, with callouts to Spotlight, Accessibility, and Displays preferences.](https://help.apple.com/assets/61E88718F626695C732DB17A/61E8871BF626695C732DB192/en_US/38a944a13a4f07a384cbd7e0d4c8b3ab.png)
Update macOS. In System Preferences, click Software Update to see if your Mac is running the latest version of macOS software. You can specify options for automatic software updates.