Microsoft's Windows 10 has gotten its fair share of criticism regarding privacy violations. but that is not enough for world domination, so Microsoft has made two updates to make Windows 7 and Windows 8 phone home too.
These updates are...
KB3075249 and KB3080149
Naturally these are for your own good and - as always - Microsoft and the government know what that is; better than you.
In this case they trace your whereabouts or rather the whereabouts of your computer (telemetry).
Microsoft's explanations are rather blurry and make no sense regarding this.
This update adds telemetry points to the User Account Control (UAC) feature to collect information on elevations that come from low integrity levels.
This is done by update KB3075249
KB3080149 makes sure that the tracking works on older systems.
The tech part:
The included service uses SSL (TCP Port 443) to download manifests and upload data to Microsoft when data is available for upload. The service uses the following DNS endpoints:
vortex-win.data.microsoft.com
settings-win.data.microsoft.com
This update contains the following two manifests that are occasionally updated by the Diagnostic Tracking Service:
telemetry.ASM-WindowsDefault.json
utc.app.json
You can remove both of those updates as regular software in the Control panel.
Both those Updates were in the optional update list (in addition to the important ones) so I simply did not download them (Windows 7)
More here