your audio drivers will revert to the manufacturers driver when you do an update.
FOR PEOPLE WHO HAVE DISABLED AUDIO DRIVERS AND STILL HAVE PROBLEMS INSTALLING WINDOWS 20H2
DOWNLOAD THE MCT (media creation tool) FROM THE LINK BELOW AND SAVE IT..... before running it turn off anti virus.
Click on the app you just saved to run it.......it takes about 30 minutes to download and about 90 minutes to install.
Microsoft MCT tool link;
https://go.microsoft.com/fwlink/?LinkID=799445
This tool is not the same as Windows Assistant