No sooner did we all say that this would be a bad idea, then MS shows us why we were right!
“If you run the latest insider build 10240 of Windows 10 you may have already received update KB3074681 which is a cumulative security update for Windows 10 that Microsoft released on July 25.
The update installs fine on machines running the operating system but seems to introduce several Explorer related bugs at the same time which users may notice when executing different actions on the system.
For instance, when you try to uninstall a program using a double-click in the classic "remove a program" control panel applet, you will notice that Explorer crashes right away.
Others have discovered the same issue when they attempted to disable an active network adapter, and it may very well be the case that there are other crash issues that have not been discovered yet.” – gHacks
There’s a work around in the gHacks article here: http://www.ghacks.net/2015/07/27/kb3074681-highlights-why-mandatory-updates-on-windows-10-are-not-a-good-idea/?_m=3n%2e0038%2e1681%2ehj0ao01hy5%2e1qvp
Martin Brinkmann points out something very true:
“This is not the worst-case scenario, which would be if an update would render the system unable to boot or destroy important files on it, but it highlights why mandatory updates are not a good idea.” – ibid
One hopes MS is listening.