Windows 10: Mute Button and Volume Scroll Wheel on Keyboard work, but don't actually change the volume

When I use either the mute button or volume scroll on my keyboard, they change the volume on the overlay, but that volume isn't linked to the actual volume of Windows. I can manually change the volume by clicking on the sound icon and moving my mouse, but I'd like to have these functions restored. They used to work as expected, and it's definitely an issue with Windows, as I can see the overlay changing, but it having no effect on the system volume.


Any suggestions?

:)

 

Volume Mute Light won´t change color

Before I follow your suggestions, a quick update: as the updating didn´t seem to work I stopped trying and just left it alone for awhile. About a half hour later I looked over and saw that the mute light was now blue. I tried the button but it and the volume buttons did not work at all. On the screen I was told that I needed to reboot, which I did and now the system has returned back to the way it was before: everything works except that the mute light does not change to blue as it should when the speakers are not muted. WTF?

 

My scroll wheel changes volume

So my scroll wheel keeps randomly changing the volume sometimes it does sometimes it doeasnt and it's not about the cpi button beacause i tried that as well. I tried unplugging then plugging it back in but that didn't work either. Can someone help me? IS
there a way to permanently disable it form windows?

 

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).