In my day to day business, I am spending an increasing amount of support time on issues which turn out to be related to Windows itself. As a heavy user myself of SnagIt, on a HP Pro running Windows 10, 64 bit, 16 GB RAM, and seeing some of the problems reported here, I am becoming increasingly convinced of the following:-
Many Windows updates aren't as trivial as they appear.
Some computer manufacturers, such as Dell and HP, have an agreement with Microsoft to add their own system and BIOS updates to Windows Update.
The fact that Windows defaults to automatic updates in the background sometimes means that it is not easy to define when exactly a problem began.
The Fall update certainly caused some issues, especially where 3rd party software copy protection was concerned.