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

The function keys, or F keys, on a computer keyboard serve as a line of shortcut keys that invoke various actions and commands in software applications.

Function keys are the F1-F12 keys that run across the top of your keyboard. Commonly ignored yet incredibly useful, most function keys act as time-saving, shortcut buttons.

Find out keyboard F1 to F12 Function keys do. Besides their specific functions, these keys are also used in combination with CTRL, ALT and Shift keys.

As part of key combos in Word, Excel, and Outlook, they make it easier and faster to perform commonly used commands. Here are 15 of the most essential function-key strokes.