I've joined a Windows 10 Pro test machine to an AD 2012 domain, and when I lock the computer (using Windows + L), and then try to unlock it, I'm asked to put in both my userid and password to unlock...

Brink, thanks for that post. Will that allow me to select which updates to install, or merely allow me to decide whether to install anything (on nothing)?

For me, one of the most annoying features of Windows 10 is the forced updates - unlike previous operating systems, you can't review the list of updates, and decide which ones you want to install. ...