I have a 2-in-1 laptop, more precisely Acre Switch 10E, unfortunately I had to reinstall it (the system restore option was damaged) after installing the system, uploading updates and drivers, there is a complete lack of sound. Device manager shows the installed driver on the bar there is an icon with volume control when I turn on "playback devices" in the speaker properties after clicking test there is no sound and it is not possible to change the frequency