If you are seeing shutdown / reboot, boot, and stability problems on your Windows 10 assembly last week, this could be due to a bug in the KB4524244 security patch. After complaints from users, Microsoft confirmed that something was wrong and about a week after the distribution began (online went on February 11), this package was removed from Windows Update without compensation. This patch applies to Windows 10 1607, 1703, 1709, 1803, 1809, 1903, and 1909.
Microsoft recommends that affected users search for the KB4524244 in the update history and uninstall it. In the event of a boot-up error, it should be possible to run Windows 10 on the next boot menu, and uninstall the update after running.
Microsoft has not announced how it plans to replace the contents of this update. It can be assumed that it will become part of a new package published under a new issue number after the problems are resolved.