Windows 10 "Security?": We got opt-out-only-all-included-private-Wifi-Password-Sharing with all your Facebook Friends, access to all data, addressbooks, emails, voice and video as well as the possiblity to shutdown hardware you attached to your PC - if MS does not like it. Quite some people from the Facebook and Computerbild Front already upgraded to the new Windows 10 - "don't get left behind and get your upgrade" - well... it sounds more like a really evil episode of Dr. Who and the Cyberman to me. Ugh.

To get to the point: Microsoft did backport some of his Windows 10 telemetry magic to Windows 7/8/8.1 and installed it unasked as updates. So your data can enjoy its "freedom" even without you upgrading to Windows 10.

Sweet.

TL;DR - Microsoft did backport Windows 10 telemetry to Windows 7/8/8.1. Xvitaly on Github made a nice cmd file, just download it and execute it to remove all the bad updates and Windows 10 Ads. Restart. After that, check the Windows Update Section and disable the Updates in Question. Otherwise, you will install these again on your next Update.
Link: https://gist.github.com/xvitaly/eafa75ed2cb79b3bd4e9