Windows has no control over the actions associated to the function keys (F1 - F12) on a laptop, that is always controlled by the laptop manufacturer.
If pressing F10 does not product the correct action, try pressing Fn + F10.
If that produces the correct action, press Fn + Esc to try to toggle the function lock on your keyboard.
2
If that does not resolve the problem, boot your laptop into BIOS and search in there for a setting to toggle between Function Keys and Action/Media Keys.
3
If that does not resolve the problem, most likely there is a problem with the utility Asus pre-installed to control the function keys, I need some more information about your laptop model.
Click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window.