I got the latest one you quote, from 2017. Maybe it has something to do with that I did a clean install of Win10? And then I installed drivers adhoc. Also I have tried to rollback drivers, so using only the Windows driver. It was called "High Definition Audio Device" and it made no difference in sound quality. Then I updated, by letting windows look for the latest driver online, and it put me back at the Conexant driver, the latest one.