What does double occupancy mean

Activate and deactivate the Fn key: that's how it works!

With the Fn key you can access additional functions of other keys by pressing them at the same time. Use over one longer period predominantly the second occupancy is the Activation of the Fn key so recommendable. This eliminates the need to press several buttons at the same time. This option is particularly useful for using the optional numeric keypad. Many laptop models have the F-keys activated in the default settings. However, the second assignments, behind which common system settings are hidden, are used much more frequently. In this case, too, it is worth activating the Fn key.

How exactly do you disable and enable the Fn key is depends on the make and model of your keyboard or laptop. The following list shows all common key combinations. By trial and error, you can find out which method to use to snap the Fn key into place.

Key or key combination


[Num] + [F11]

[Ctrl] + [Shift] + [Num]

[Fn] + [Num]

[Shift] + [Num]

[Shift] + [NumScroll]

Have the [NumLock] key, you have the option of activating and deactivating the numeric keypad on your keyboard. If this is deactivated, you can access the secondary functions of the keys even without the Fn key. There isn't any on your keyboard [Num] key available, enable or disable the Fn key as follows:

Key or key combination


[Fn Lock]


[Fn Lock] + [Esc]

Works when a lock is depicted on the escape key

[Fn] + [F11]


[Fn] + [Ins]


[Ins] + [F11]


[Ctrl] + [Shift] + [Ins]


[Fn] + [Shift]

Works if a small Fn ↓ is shown on the Shift key; Be sure to press the keys in this order

You have the Fn key activated unintentionally? This oversight is quickly noticeable when pressing keys does not lead to the usual results. In order to use the usual keyboard layouts again, deactivate the Fn key using the keyboard shortcuts mentioned above.