Tip: using the "windows" key + the keys "plus" and "minus" in the numpad (if you have it), makes the volume decrease / increase
and since the next build (3.8.31) if you press the shift key also, it will adjust the brightness 
Tip: using the "windows" key + the keys "plus" and "minus" in the numpad (if you have it), makes the volume decrease / increase
and since the next build (3.8.31) if you press the shift key also, it will adjust the brightness