Reverse Dell Venue 10 5055 Pro Drivers

 My dad finally upgraded his Venue 10 5055 Pro tablet from Win 8.1 to 10 and his audio device has 'uninstalled' and now has no sound nd the speaker has a red x over it. The issue is known to be with the updated audio drivers that were created as part of the Dell Win10 update package and the fix is to revert the audio drivers to the 8.1 versions. I found the drivers however when I try to install then manually through the device manager Windows refuses to let me pick the file and just says the most up to date version is installed. Is there a way to force the install of the .inf file?