Windows 10: Light of mute button not working though functioning properly

Since yesterday, the light of the mute button isn't working though it is functioning properly. I checked all the related drivers and they are up-to-date. Pls help

:)

 

Volume Mute Light won´t change color

I have an HP ProBook 6440b with a Win 10 Pro os. My problem is the volume mute light (#5 in the service manual, page 2-6). The switch works o.k. and shows when the mute function is on or off on the desktop but the light stays orange (muted position) regardless of the function being on or off. I know that the blue color is there as I see it flicker so slightly during upbooting but I can´t find out how to have the blue color show when the speakers are not muted. The wireless button (#4; page 2-6) changes color and the function works properly when pushed (tried it as a function comparison test) so I think this may be a slight software glitch in the sound system code but how to find and fix is way beyond my knowledge and skills. If anyone knows how to fix this problem, please do tell but baby steps please as my computer skills are truly limited (old dog, new trick syndrome rules here).

 

MUTE BUTTON LIGTH IS NOT WORKING

starting the computer mute button led light is not functioning but the button is in operation

 

F6 mute button light not working after latest Windows update

Hi, I have a HP laptop and the F6 mute button light is no longer working after the latest Windows 10 update. (its just the light, the mute function still works) Hp have no idea how to fix it. I have the latest audio driver. Does anyone have any ideas?
Thanks