To use them, you'll need to press and hold the Fn key on your keyboard, which will make the F keys appear in the Touch Bar. From there, you can select the key for the desired function.

Ever noticed the Fn key on your Mac or Windows computer? It serves several purposes, but you'll need to learn how to use it. Here's what you need to know.

If you need to use your F keys on your laptop for an app or game but it isn't working, there are a few solutions you can use to make life easier.