This is the Update information that I have on 1 of my 3 PCs.
On the 2nd, the necessary update has been installed i.e. KB3035583 but there is nothing in the system tray.
On the 3rd, the notification icon is there in the system tray, but no email confirmation was initiated.
So, for the moment, I appear to be only able to upgrade 1 of my 3 PCs.