Microsoft is pushing the Windows 10 upgrade files to your system.
Even though Microsoft says my virtual machine running Windows 7 is not capable of running Windows 10*, I also got this crap on my system ….
Luckily it can easy be undone, just remove updates KB3035583 and KB2952664.
You can find detailed instructions at TechJourney
When you’re removing the updates, don’t forget these 6 updates, they install tracking software on your system.
* And that is strange, Windows 10 Insider Preview runs perfect in Virtualbox 😉