Disabling Realtek audio notification on Windows 10

Solution 1:

Go to Settings > System > Notifications and actions and under Get notifications from these senders, scroll down and turn off Realtek HD Audio Manager

Solution 2:

I found a solution here that worked for me. Basically:

1. Open the Realtek HD Audio Manager through the Control Panel.
2. Click on the lowercase "i" on the bottom right of the Audio Manager window that pops us (just above the OK button).
3. Uncheck "Display icon in notification area".
4. Click OK twice to exit the Audio Manager.

Solution 3:

For those with no success with the previous suggestions: In my case (Windows 10 Version 1803 build 17134.254), what finally did work was to go to Task Manager > Startup tab, and right-click on the Realtek HD Audio Manager and select Disable.

Solution 4:

For many people, the Realtek Manager doesn't appear in the control panel and you must find rtkngui64.exe in your realtek install folder to launch it.

By default, this is in C:\Program Files\Realtek\Audio\HDA

Once open, just like the other answers, go into settings and uncheck the box to disable the popup.