I downloaded the latest version of Realtek Audio driver, it installed all the way and I restarted the computer but it does not show in the Control Panel and it does not work.
This happens due to improper driver installation. In order for the icon to appear in the Control Panel, you will need to install the driver as Administrator. You can do this by launching the setup package with Run as Administrator option. Just right click the package and select the mentioned option. Also, please make sure that you have the latest .NET Framework installed in your system.
باید درایور رو دوباره نصب کنی
به این صورت که برای نصب باید روی فایل ست آپ کلیک کنی و گزینه زیر رو انتخاب کنی
run as administrator