As stupid as it sounds, but my laptop always makes a sound as soon as I open a folder. Such a very annoying. The laptop has been doing this recently and I do not know how to do it.
If you right-click on the speaker icon in the right-hand corner, you should be able to select "Sounds" or "System sounds" or something similar.
It should then open a menu in which you can possibly turn off the system sounds or change…
Unfortunately, I do not know about Win 10, so I can't give any detailed instructions…
In Win 10, right-click on the speaker icon. I would most likely look for it and settings and then notifications and actions.