Hi Roger,

Thank you for posting your query on Microsoft Community.

Once your computer is upgraded to Window 10, it automatically replaces the former sound driver to a new one. This won’t be compatible with the old system of your computer.

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Kindly follow the below methods and check if it helps to resolve the issue.

Method1:Hardware and Devices troubleshooter.

1.Press Windows icon key on the keyboard, type troubleshooter and select the top most search result.

2.Click on View all from left side panel of the screen.

3.Select Hardware and Devices, click on advanced option and check Apply repairs automatically option.

4.Follow the on screen instructions.

Method2:Audio device troubleshooter.

1.Press Windows Key icon key on the keyboard, type troubleshooter and select the top most search result.

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2.Click on View all from left side panel of the screen.

3.Select Playing Audio, click on Advanced option and check Apply repairs automatically option.

4.Follow the on screen instructions.

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5.Close the window and check if the changes are effective.

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Method 3:

You may refer to the below article and verify the sound issue.

I also suggest you to install and update the drivers and check if it helps. You can follow the link below to Install and Update the drivers in Windows 10.

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You may also try installing the drivers from the manufacture's website and check if it helps to resolve the issue.

Acer Iconia W510 Windows 10 Drivers

Hope this information is helpful. Please do let us know if you need further assistance with Windows, we’ll be glad to assist you.