Rather than turning off the projector, covering the projector lens or covering your monitor, you can use your computer's function keys to alternate how you display your desktop.

How to Fix the Fn Function on a Dell Computer. The "Fn" key on a Dell toggles the multimedia keys on and off. On some models, you must press "Fn" to activate these multimedia keys, but the ...

Are you sitting on unused Mac function (fn) keys on your keyboard? Here's how to remap Mac function keys and repurpose them to trigger useful actions.

Since each computer, operating system and program utilizes function keys differently experimenting with them in programs you often use might reveal some useful shortcuts. More questions?

Are those function keys basically occupying dead space on your keyboard? Tech guru Kim Komando (yep, that's her real name) tells us what they're usefu ...

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.

What does function key actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Can't change screen brightness? If the Function key for Brightness is not working in Windows 11/10, the problem may be with drivers. This post will help you fix the issue.

Normally you can only choose all function keys or all special keys by default. With FunctionFlip, you say which keys operate as special keys and which operate as the default function key (e.g., F1 ...