Jul 08, 2017 While in Windows, the Mac’s Command key functions as the Windows key, while the Option key functions as the Alt key. If you have a Touch Bar, you’ll see a complete set of buttons, similar to the Extended Control Strip in macOS. To see the function keys (F1, F2, etc.) simply hold down the Fn key.
The Touch Bar of your MacBook Pro changes to show the function keys for you to select, and then it returns to its previous state when you release the Function key.
For some apps, you can make the function keys display permanently in Touch Bar:
Now when you open or switch to this app, Touch Bar always displays the function keys.
You can also use an on-screen keyboard to access function keys:
An on-screen keyboard appears with function keys that you can click.
When you use Boot Camp to run Windows on your MacBook Pro, the function keys work the same as they do in macOS. Hold down the Function key on your keyboard, and the function keys appear.
You can also use the Windows on-screen keyboard to access function keys:
You can also make the function keys appear continuously in the Touch Bar while using Windows, without having to hold down the Function key:
By default, the top row of keys on your Apple keyboard control many different features on your Mac. For example, pressing the keys with speaker icons adjusts the volume.
If your Mac has a Touch Bar, learn about using function keys on MacBook Pro with Touch Bar.
Standard function keys work differently depending on the app and the keyboard shortcuts that you've set up. Some apps have their own keyboard shortcut preferences that you can customize.
To use the standard function keys, hold the Fn (Function) key when pressing a function key. For example, pressing both Fn and F12 (speaker icon) performs the action assigned to the F12 key instead of raising the volume of your speakers.
If your keyboard doesn’t have an Fn key, try pressing and holding the Control key when pressing a function key.
If you want to change the top row of keys to work as standard function keys without holding the Fn key, follow these steps:
If you don't see 'Use F1, F2, etc. keys as standard function keys', you might be using a keyboard not made by Apple. These keyboards might need a utility to change the keyboard functions. Check with your keyboard manufacturer for more information.
Learn about using function keys on MacBook Pro with Touch Bar.