I had a pop-up about a Realtek thing but I canceled/denied permission to it. (Can't remember if it were my antivirus advising me, or was Windows.) Still seem to have audio from my speakers and headphone jack. Just to be sure, I checked Device Manager, and no exclamation mark warnings.
I only had two updates when I ran Windows Update again: .NET Framework, and Adobe Flash. What were the other ones you had? I just now checked and no other updates available.
Two intelligence updates and a security update. Then another security update for Adobe Flash Player