I've had an intermittent problem for a while, where for no reason I can deduce, my keyboard volume and mute keys stop working. Logging out will not fix the problem, but a restart will.This started ...

Fix Keyboard Volume keys not working in Windows 11/10 Let us start fixing your Keyboard Volume keys by first physically cleaning your Keyboard especially the area around the Vol Up/Down/Mute keys.

How to turn off keyboard clicks using the mute button The easiest way to quickly turn off keyboard clicks on your iPhone or iPad is to use the Mute slider on the side of the device.