https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-kb4571744-to-fix-windows-10-update-issue/

Microsoft released the Windows 10 KB4571744 non-security preview cumulative update to address an issue leading to the Windows Update service becoming unresponsive when customers are checking for updates. 

With the "2020-08 Cumulative Update Preview for Windows 10 Version 2004 (KB4571744)" update, the build number for Windows 10 is advanced to 19041.488.