Read this on Destructoid:

"Xbox One's Kinect knows your mood, can see in the dark"

and then..

"The Xbox One will NOT function without the Kinect"

..and I thought:

1984

...That people willingly accept this kind of technology into their homes with NO understanding of the inner workings is outright crazy, the amount of trust we place in dominating corporations is way beyond what anybody should accept just for having entertainment posibilities.
I don't care how many times MS will say "if you shut it off, it won't be active", "no data is being stored" etc. etc. - very few corporations tends to speak truthfully when they want your money.

As far as I remember CDPR answered this somewhere with a big "yes", think it was in the "feature list" they presented

Using CCleaner and Game Boosters etc. aren't going to help one bit.. CCleaner is cleaning up your registry database internally in Windows, which is almost never responsible for anything crash/bug related.. It's just a registry of information, it does not contain .exe files, driver files or anything else that can cause instability. You are allowing a piece of software full access to the "inner circles" of your OS, without knowing much about what it does.. If some registry keys are left over from a install/uninstall, they won't harm your system in any way, no need to remove them with CCleaner etc... Those keys are just reduntant, not slowing anything down (a database search is REALLY fast today).
Game Booster shuts down internal services that are not crucial, but running with an i7 you shouldn't have to do that.. Your system is fast enough to have those services running without causing any slowdown..

Best you can do is just use your OS like it is, with some antivirus.

Well the money to spend on thin air is pulled out of the same thin air by bankers feeding on the dream of something new and shiny to ease the pain. The only time this becomes real is when the debt has to be paid

I haven't got my TW2 on Steam, and it has always done the same thing as OP - still does..

Figured it was bad/lazy coding that wasn't going to get fixed, so I just ignore it.