https://www.bleepingcomputer.com/news/microsoft/windows-10-kb4524147-update-may-cause-boot-and-printing-issues/

Windows 10 1903 users have started reporting boot, printing, and Start Menu issues after installing the KB4524147 cumulative update that go away once the update is uninstalled. Microsoft has not acknowledged any of these issues as of yet, but the amount of reports indicate that there is something going on with this update.

As typical with Windows updates, some users are having problems after installing the Windows 10 KB4524147 update, while others, like myself, are not having any issues at all.