PCs that run on processors that are of the Skylake or later series are reportedly displaying obstructive messages in the course of their update to the October version of Windows 10. This is due to an older Intel Display Audio driver that may cause instability if still present when the machine has finished upgrading itself.
https://www.notebookcheck.net/Devices-with-6th-generation-or-newer-Intel-chips-facing-issues-with-new-Win10-update.337040.0.html