Windows button and start typing what you're looking for. I don't understand users that still point and click at everything.
Search is not a good UI, because you never get muscle memory with a search.
I've had the same problem; Microsoft has been changing the keyword that triggers the audio input/output control panel, but the official and unchanging (so far) name of the panel is "Change system sounds" and "sys" in start menu search returns that as the 1st or second result.
I feel like I do though... I often get in a pattern of just searching for the same few characters I know will bring up the right thing. Though Windows has a habit of deciding to change around the ordering on you.