Doesn't seem to have worked that way in this computer. Win Defender was Off and is updated beyond that version(1.1.113804).
where it didnt update (cyberdiva) was (as MSE) on Windows 7 computer.
May be different on 10?
I confess that I'm not at all clear about any of this, but I stopped using MSE more than a year ago when I switched to Kaspersky (I had the offer of two free two-year subscriptions and decided to give Kaspersky a try). I've just checked with Everything Search, and Microsoft Security Essentials is not on my computer. Moreover, when I was using MSE, I'd get daily updates for it through Windows Updates, but those updates stopped when I switched to Kaspersky. Also, IIRC, Windows Defender existed separately on my computer from MSE when I was using MSE.
The arrangement I currently have is that Windows Defender does NOT automatically scan and does NOT use real-time protection. However, I think I changed the setting under Administrator from leaving "Use ths program" unchecked to having it checked. And since it's checked, it claims that the "program will alert all users if spyware or other potentially unwanted software attempts to run or install itself on this computer." Just how WD will know this if it doesn't automatically scan and doesn't use real-time protection isn't clear to me. FWIW, the version of the WD engine currently on my computer is 1.1.13804.0, and the antispyware version is 220.127.116.11.