1
Open the old Control Panel.
Set View at the top to large icons.
Open the Sound applet.
If there is an Enhancements tab, disable any enhancements that may be enabled.
2
If that does not resolve the problem, go to the support page for your PC on the manufacturers website, then from there, download and reinstall (not update) the version of HD Audio drivers they provide.
Click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window.