Function keys that enable convenient features like instant browser refreshing or screenshotting pages are lost unless you hold down the “fn” key on your keyboard.

Press "Fn-F8" to change your computer's wireless connection from Wi-Fi to Bluetooth and back again. Press "Fn-F9" to disable the mouse touchpad. Press the buttons again to enable it.

Many keyboards on the laptops carry multi-function keys. They usually help to combine keys or enable an elevated extra key marked on the keyboard. If you have seen extra keys marked on a key, i.e ...

Select Enable auto-repeat to toggle the auto-repeat function, which repeats the key that is held down multiple times until you let go.