Problema com el microfono despues de la actualizacion de windows 10

Hola, yo tengo un notebook z40 y después de la actualización de windows 10 el microfono no funciona como antes. Mi voz sale como se fuera con ruidos de una tele con problemas de sonido. Yo no se o que hacer, estoy intentando cambiar el volume y todo, pero no se arregla. 

Hola andreiafavarin que tal,
Instala este controlador
z40-70
http://support.lenovo.com/es/es/products/laptops-and-netbooks/lenovo-z-series-laptops/lenovo-z40-70/downloads/DS103310
z40-75
http://support.lenovo.com/es/es/products/laptops-and-netbooks/lenovo-z-series-laptops/lenovo-z40-75/downloads/DS103980
Un saludo.

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