I just checked my Task Scheduler, and none of those Nvidia telemetry tasks identified by MajorGeeks have ever run. I've just enabled "tasks history" (i.e.: chron logs) from admin to see if it's actually doing anything. The tasks only appear when you run Task Scheduler with admin rights, so access is restricted to users with administrator rights. From the history, I think this telemetry might be in the works, but not running yet.
It's possible that since it is an admin task and I run in a limited user account (standard account), it's not triggering the task, but the tasks are supposed to be triggered by login of "any user," with a daily report at 12:45 on my machine if there's no login to trigger, so I can't see how that's happening. This all should be working, but it appears to be dead at this time on my machine with the latest drivers.
I do have GeForce Experience 3 installed, and it *is* asking for a login, however. So it seems they're tagging *something* to an account.
The GeForce forums are a shitstorm of "ditch the login" posts in every GFX thread. People are threatening boycotts, etc. It's really quite interesting. Here's the initial feedback thread when GFX 3 went live. Bring popcorn.