Windows 10: I have a lenova laptop and sound card got deleted.. The internal speaker not working

I need to install the origianal sound card that powers the internal speaker. It got deleted accidentilly . how do I install a new one to restore sound for the internal speakers

:)

 

no sound plays through internal speakers

I cannot get any sound to play through the internal speakers of my laptop. It did play previously. The speaker in the task bar has a red and white x and the trouble shooter says no speakers headphones plugged in. When I pull up the info on sound it lists
its location at HDMI port. Suggestions?

 

Switching off internal computer speakers

This is a subject that has been raised before but Microsoft seems to refuse to answer. As a result of a previous update to Windows 10, the internal computer speakers work as well as the external sound system. There is no apparent way to switch off the
internal speakers and just have the external sound system working. A previous contributor suggested that Microsoft had a solution to this bug but wouldn't elaborate. This seemed very childish.

I ask the question again: Could someone give a step by step process for switching off internal computer speakers AND leaving the external speakers working. I have tried every setting but nothing fixes the problem. Surely this isn't rocket science and
it would be easy for Microsoft to write a bug fix???

Lack of action just infuriates users unnecessarily.

 

Internal speakers and headphones no longer working after Windows 10 update

I'm running Windows 10 Home, version 1709, build 16299.125. I tried the steps suggested on that page, but the sound card no longer appears in the device manager at all that I can see. And on the sound control panel, the internal speakers and headphone jack
no longer appear either. There is no default device there that I can modify; it only shows Bluetooth options.