Windows changed the way you control sound volume (for what reason is a mystery to me). The sound control keys in your k/b do not work as they used to, either all on or all off. To control volume as it used to be you have to go to Sound settings, and then look for Volume mixer, and if you are in the sim, you will see it in the Apps, and you can move the slider to the level you want, you will see the System volume which you can set to the same volume. This is in Windows 10/11 version 22H2 (I have Win 11 Pro)