After seeing alot of posts of people having the same problem as me I think I found the quickest easiest fix. If you upgrade to win 10 and your fn keys stopped working try installing this asus atk package the one I found is for win 10 64/bit
http://support.asus.com/download.aspx?SLanguage=en&p=3&m=ATKPackage&hashedid=n/a
but I believe this is the best link because you can choose your operating system hope this helps somebody out as I was frustrated trying to find an easy fix.
windows 10 fn keys not working asus g73j I found an easy fix
Discussion in 'ASUS Gaming Notebook Forum' started by Darin Gamer, Oct 31, 2015.