Installed it on the Z590 motherboard. Drivers installed but Realtek HD Audio Manager did not install (I removed existing drivers first, and HD Audio Manager was not installed) As a test I installed the same driver on my X299 motherboard and it did install the HD Audio Manager. Audio works on both systems Why would it install the HD Audio Manager on one but not the other?
First download "Display Driver Uninstaller 18.0.4.3" from Guru3d.com and then switch off internet. Run it and if it give some messages like take backup or switch on safe mode or show options window, just click ok and close those windows. Then in main window click "select device type " and click "audio" option there. Below that click "select device" and click "Realtek wip". Then on left side of window click "clean and restart" option. Then it completes the operation and reboots system. Then install the new audio driver and restart system again. Then you will the see HD audio manager on tray after reboot. Then switch on your internet. This whole process needs the internet to be off. We have to blame m$ updates and its driver store because when our realtek driver setup uninstall old version and reboot, m$ interrupts installation process in some way which result in errors of HD Audio Manager not showing on tray. To avoid that , we must do this.
Oh, ok. I thought DDU was for GPU drivers only. Silly me. I already have that. Thank you for your help. I do appreciate it. I will let you know how it goes. On a side note: I use a WSUS server here. I don't download drivers (or updates) from M$ directly. Nothing gets installed unless approved in WSUS first. I will disconnect Internet as you instructed, just thought that tidbit might be worth mentioning.
First thing i do after w10 installation is i activate admin user , log in to it and open group editor and disable all things those are linked with updates. So my w10 update button also disables and never install updates in the default user. In 3 or 6 months when i get mood or need, i re-install pre-updated w10 iso downloaded from cloud.mail.ru links. So i don't need to bother about those random m$ updates which mess my system. In the name of security m$ adding more and more telemetry to w10. A proof of that is when we perform some update, new m$ executable files try to connect home. My firewall control notifies me.
DDU doesn't uninstall 9205 Audio driver, but it does break it such that it can't be uninstalled from programs and features. Maybe 9205.1 is too new So restored from an image from a few months ago that had 9075 installed. Then ran DDU and it uninstalled the drivers correctly. Reinstalled 9205, but it seems to only be getting partially installed. No software at all. No system tray or control panel HD Audio manager. Nothing in programs files and only RTL Updater in program files (x86). Nothing else. So, back to 9075 which likewise has nothing installed but drivers. Then tried 8881 which doesn't support ALC4080 but does support ALC1220, and is known to have the HD Audio manager. Stii HD Audio manager won't install. Found a later chipset driver so installed that and tried 9205 again. No luck. So I'm on 9205 but I have no HD Audio manager in control panel or tray. There is no software installed at all, just the base drivers. All attempts were done with Internet disconnected and drivers removed with DDU before each attempt. Yes, I think LTSC 2019 is fairly stable now. I am planning to stop installing updates at the end of the year.