I haven't been able to understand what is wrong. When a sound is playing in my laptop whether its from the internet or spotify or a game, when I adjust the volume, the playback stops and does not work until I restart the app that is playing or restart the Windows Audio Service. This also happens at times when switching from one application to another using ALT + TAB keys while there is playback. Haven't encountered this problem when using my other desktop. Its kinda annoying because I am a freelance event spinner and usually the venue that I am situated in does not have a dedicated mixer nearby that I could position myself for their sound system. As a result, I rely on my system volume.