So you can test your audio drivers after the windows 10 is fully installed.
CONEXANT HD AUDIO DRIVER WINDOWS 10 INSTALL
After upgrade to Windows 10, the computer will automatically install the audio drivers. If you want to upgrade your Acer system to Windows 10, it depends on your computer model, Acer released an article about models supports windows 10, you can view it from here. I'm two major Windows 10 version behind due to this issue and more than an year have passed.
You can try to uninstall your conexant audio drivers first and then reinstall it. Operating System: Microsoft Windows 10 (64-bit) As many of us know, Conexant audio based chipset PCs around the world can't update to Windnor 20H2 due to acknowledge issues in Conexant audio driver that needs to be fixed. I do not use this card, so I did not try. If you have already installed Windows 10 system for your Acer laptop/desktop, for updating conexant audio drivers for your old Acer computer, you can enter device manager to help you, like the image TairikuOkami said. Scarica i driver per Conexant SmartAudio HD schede audio gratis Versioni dei Sistema Operativo: Windows XP, 7, 8, 8. Download Conexant CX20751 SmartAudio HD Driver 8.66.4.0 for Windows 10 64 bit But it really depends on your type, the latest, but probably incompatible are here: Download Conexant Sound Card drivers Still you can try to install it using Have Disc (twice) and then Let Me Pick. So most times, you need to download the conexant hd audio drivers from the computer manufacturers download center. We know Conexant only provide audio chip to manufacturers, and they do not released audio drivers to the public on their website, they will send it to the manufacturers.