KB3035583
Microsoft is pretty sneaky. They camouflage their Windows 10 downloader, KB3035583, as a recommended Windows 7 update with no indication of what good this update does. Only by clicking on the first link is its true intention revealed.
Norwegian description of KB3035583, sadly with no indication of what the update actually does
As a contrast, the dreaded KB976002 browser choice update was well marked with its intention even in its (long winded) title. Luckily, we don’t see that update anymore.