Acer Aspire No Sound!

I have an Acer Aspire E5-575 -33 BM

I am running Windows 10, verson 1909

I'm here after running out of ideas. I have no sound and have tried all the logical solutions I know of. My sound card is not even listed in "device manager". I have found in device manager/system devices, there is an error at "High Definition Audio Controller".

In "Services" under Windows Audio, I have found in the properties/dependencies that one of the 3 required services is missing, i.e., "Multimedia Class Scheduler"

I tried to recover this by installing Windows 10 again and keeping my existing files and apps. This didn't work, much to my surprise.

I bought the program "Restoro" and ran a full scan and it didn't fix the problem

I tried downloading and manually installing the update (KB4023057) after it failed via Windows Update. It gives me the error that Windows Services cannot be opened.

I have so many programs that I don't care to do a fresh install of Windows, so this is my last option before going that route.

Thanks, for any help you can offer me!