Re: Audio mute button in Windows 8.1 does not light

Hi,

Other venfors have same problem after upgrading to 8.1:

   http://answers.microsoft.com/en-us/windows/forum/windows8_1-hardware/after-upgrading-to-windows-81-my-laptop-keyboard/3f092c13-5bd1-4ec5-a3b9-4ccf220a3906

I don't know the model/product of your machine, there are hundreds of m6 models. Please use the following way to check the model/product of your machine:

   http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c00033108

Then go to support site to download the keyboard driver and re-install on your machine.

Regards.