FN key does nothing (Ctrl key acts as FN and Ctrl)

Hello, had my Areobook for a few months now and have an issue with the FN key. Problem is it does nothing. The Ctrl key activates all of the functions and works as the Ctrl key should in all its other uses. Anyone know how to get the function key to work. Ive had this issue since ive had the laptop so its not like its unusable, just annoying.

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