Sometimes, the Taskbar volume control icon in Windows may not respond to the mouse click. The slider doesn’t appear when you click on the speaker icon, and nothing happens when you right-click on it. The audio may still work in all applications, but only the controls don’t open. Due to this, users have to open
sndvol.exe from the Run dialog to open the Volume Mixer and control the sounds.
This post explains how to fix the volume control (speaker) icon in Windows 10 and Windows 11.Read more