Many laptop or netbook keyboards have an Fn button. Why is it needed?
On the keyboards of most laptops, ultrabooks and netbooks there is an Fn button, but unfortunately, the instructions for the gadget do not always have a description of its use and inexperienced users, by chaotically clicking on it, can accidentally turn off Bluetooth or the wireless network, the touchpad, switch to the numeric keypad from the main one, and the user will feel that the laptop is broken.
In fact, the Fn button is a quick access to some of the capabilities and settings of the computer. It must be remembered that to quickly call the settings or enable / disable the function, you just need to hold down Fn and simultaneously with it the second key - with the symbol of the function.
Take a closer look at the keyboard. In addition to letters and control buttons labeled Enter, Shift. Ctrl, alt="Image", etc., on the keyboard you will find buttons with small icons drawn in the same color as the letters "Fn" (as a rule, this is a faded color than the others used in the keyboard design). When you press Fn simultaneously with the button that shows the loudspeaker, you can control the sound on and off, pressing Fn simultaneously with the button that shows the icon denoting the WiFi network, you can turn on and off the WiFi receiver-transmitter of the laptop, etc. Turning on / off the touchpad, sleep mode, adjusting the screen brightness, as well as switching to working with the numeric keypad (if the laptop keyboard is not full-sized) works in the same way.
It is worth understanding the functions that can be quickly controlled using the Fn button, since changing the same settings in the operating system is often much more difficult and longer.
If the Fn key on the laptop does not work, then it may be disabled in the BIOS. If this is not the case, you will have to install special software that comes with the specific PC model.
An example of using the Fn button: The photo shows that pressing Fn and F3 at the same time turns Bluetooth on and off.
