The Fn key is also known as the function key, and on Windows and most Mac keyboards, you'll find it located in the bottom-left corner of your keyboard.

The function keys on your keyboard are the most powerful computer tools that you're not using. We're going to fix that.

If Keyboard Shortcuts are not working in Photoshop on your Windows PC, reset the Keyboard, reset Photoshop settings or follow any of the other suggestions.