My FN function keys don't work (ie. volume up/down and mute)

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Prime187 - Updated on Apr 3, 2017 at 10:03 AM
Hello,
I have an ASUS ROG G74SX. I realized with windows 10 that my FN key won't allow me to mute my volume or increase or decrease either. If someone knows a solution to fix this I would be very happy. Thanks!