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This includes the top row of standard function keys f1 f12. Commonly found on laptop keyboards the fn key is used to control hardware functions such as screen brightness and speaker volume.

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Your keybaord has an fn key that when held down will allow you to use the secondary action of the fn keys.

What does the fn key do. Alternate commands are labeled on top of the keys such as redo. These 11 other keyboard shortcuts will make your life easier too. On a pc the default function of the fn keys is set in the bios.

Short for function fn is a key found on most laptop keyboards and some desktop computer keyboards. Most modern laptops retain the fn key but it s used primarily to activate special laptop functions. The fn key short form for function is a modifier key on many keyboards especially on laptops used in a compact layout to combine keys which are usually kept separate.

They re marked by special icons and are color coded to match the fn key. For example key f1 on my laptop s keyboard has a small icon of touchpad off in a color. Some laptops let you lock the fn keys.

It is typically found on laptops due to their keyboard size restrictions. It is also found on many full sized multimedia keyboards as the f lock key. Keys with an fn key or f lock provide two sets of commands for many keys.

Sadly there s no standard for naming these fn keys and their functions. These functions share other keys on the keyboard typically the function keys. It may also be found on extra small keyboards for desktop.

Here s the answer to the mystery of those function. The fn key is used to activate special function keys which are marked by special icons in the same color. This is like turning caps lock on which allows you to type all capital letters.

Standard commands are labeled on the front of the keys such as f3. The fn key performs special functions such as adjusting the screen s brightness and speaker volume. Pressing the fn button with the f keys will typically enable them to work.