Over the last few days windows 10 automatically install or update without user approval. Now you can also set Windows Update to install recommended updates automatically.
http://windows-support.windowshelp.support/2016/03/18/windows-10-installing-updates-without-users-permission/
http://windows-support.windowshelp.support/2016/03/18/windows-10-installing-updates-without-users-permission/
