Neowin published a story that the new Windows 10 update KB5000842 is causing high-pitched noise issues with Dolby Digital audio 5.1 in certain conditions.
Windows 10 update causing high-pitched noise issues
Microsoft Windows 10 update KB5000842 is causing a high-pitched noise while using Dolby Digital audio 5.1 in certain conditions. This issue has been confirmed in Windows 10 version 2004 and 20H2.
