... so yes, I think that maybe this updated causes some trouble. please, what can I do?
YA think??? We know!! Until someone with more knowledge than me comes along, I've found two articles from howtogeek.
MICROPHONE: https://www.howtogeek.com/395296/fix-my-microphone-doesnt-work-on-windows-10/
SOUND PROBLEMS: https://www.howtogeek.com/443702/how-to-fix-sound-problems-in-windows-10/
I was going to direct you to some YouTube tutorials and then thought... D'OH.... he has not sound!! I'm not sure we're allowed to link to YouTube videos here or not. Unsure about our permissions on that one.
Also check your default apps in system settings. i.e. Groove Music under "music player." Several of mine were arbitrarily changed after I got the initial update.
Good Luck Alejandro.