Four time I have updated to Win 10 20H2 and four times I have had to roll it back due to failure to find the audio card (no sound from speakers after upgrade). 2.5 hours on the phone with a Dell Tech didn't solve it, and now Dell is saying it is a software issue. I could understand if this was a third party software that I chose to install, but this is Microsoft, and I have no choice. At some point in the next 25 days they will force me to upgrade and my new XPS 8930 (not even a year old) will be mute. This is the new Windows build, and all future Dell machines will have to shop with it. Can anyone offer a fix on how to deal with this? The latest Realtek driver released 3/17/21 does NOT fix the problem. Thanks.
Uninstall the update you don't need it for anything. Hope for a resolution with H4 or whatever they call the spring upgrade
Go to all settings/security and updates there is a link to uninstall updated click it. Find the update and uninstall. i have removed it from 3 of my 4 units for various incompatibilities mainly my computers not showing up in network Connection
Otherwise, have you reinstalled the Realtec software/hardware drivers, usually fixes these kinds of issues