macOS High Sierra

Change settings in System Preferences

You can adjust system settings to customize your Mac. For example, you can change the size and location of the Dock, choose a desktop background, and more.

To open System Preferences, click the System Preferences icon in the Dock or choose Apple menu > System Preferences.

Open System Preferences for me

Explore preferences

Options are organized into preferences. For example, options that control how the desktop appears are located in Desktop & Screen Saver preferences.

Preferences appear as a grid of icons; the icons shown may vary depending on your Mac and the apps you have installed. Click an icon to open a preference pane and see the options.

System Preferences window showing the grid of icons. Click the Show All button in the window’s toolbar to see system preferences as a list, or change how the grid looks.

By default, preferences are arranged in rows by category. To see them in alphabetical order, choose View > Organize Alphabetically.

Set options

Each preference pane contains options you can set. Most panes include a Help button