[NAME] You could try downloading and reinstalling the Realtec Audio Driver. I downloaded and looked at the driver with 7-zip and it appears that Waves Maxx Audio Pro is in that file. 
Would like to reinstall Waves Maxx Audio Pro application/ Realtek driver but all I can find are pages on Dell for XPS 7000's, XPS 9000's and XPS 8940 re installations. Is there a Dell page for reinstalling Waves Maxx Audio Pro/Realtek driver for XPS 8930? Perhaps I'm overlooking it in my search? Every page I find, I check under 'Compatible with...' and can't find XPS 8930. I searched on Support page for my computer and the only thing showing up under 'Drivers' is a bare-bones Realtek driver, no driver for 'Realtek driver integrated with Waves Maxx Audio Pro'. Yes, I can do the Dell OS Recovery but my computer is finally the way I want it (minus the Maxx Audio, of course) so this would be as a last resort. I don't feel like reinstalling Windows, Updating Windows, Reinstalling software/programs, installing/updating Microsoft Store apps, ... Any help would be much appreciated! Thank you!
XPS 8930, Possible to reinstall Waves Maxx Audio Pro?