Some time ago the Microsoft released KB5000842 (OS Builds 19041.906 and 19042.906) as an update preview for Windows 10, 20H2 and 2004. The update appears to be problematic for too many users.
Initially KB5000842 affected gaming performance. This was mostly reported by users who run full screen games and use two or more screens. This was quickly resolved with the Rollback feature that fixes problems with Windows updates before they reach millions of computers worldwide.
Now, a new issue has emerged from the same update. Loud sounds may be heard if you use 5.1 audio after installing KB5000842.
This only affects those who use 5.1 Dolby Digital audio with certain settings. The issue does not occur when using stereo audio. Microsoft, which is reportedly currently trying to resolve the issue, is proposing the following solution.
Stream video or audio to a browser or other application instead of the application affected by this issue.
Change the spatial sound settings by right-clicking or holding down the volume icon in the notification area by selecting spatial sound and selecting any of the other available options.
Fortunately, KB5000842 is still an optional update, so most Windows 10 users will not be affected.
Only those who have installed the update manually and have the specific settings have a problem.
Prior to the release of the "fixed" builds update, Microsoft had plenty of time to resolve these issues without affecting the stability and reliability of the operating system.