Microsoft says Windows 10, version 1903 is affected by a new bug triggering an error asking users to “Try again”” after completing the Windows installation process or after resetting a device. The issue affects devices that connect to the Internet for the first time or the ones on which new Windows installs haven’t previously connected during the installation process. Microsoft is working on a resolution for this new issue and it plans to provide an update in a future Windows 10 version 1903 release. The company also acknowledged another new issue impacting several Windows versions and leading to slow startups on devices configured to use persistent memory.”
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-1903-affected-by-new-setup-bug-workaround-ready/