Hello, I was having the same problem. I downloaded the Driver Easy program, and it had three driver updates:
- Realtek Audio Effects Component.
- Realtek Audio Universal Service.
- Realtek Hardware Support Application.
After downloading and installing them on my Lenovo Ideapad Gaming 3, I restarted the laptop, and everything was working again. I don't know if it will work for you, but here was the only way it worked for me.
P.S.: These drivers are located under the "Software Components" section in Device Manager.