Removing Telemetry After Uninstall

I uninstalled all parts of NVIDIA Toolkit v9.2.

It left me with an unwanted telemetry thing, that I’m pretty sure I don’t want or need.

How do I rid my system of this vile impost?

Also, how to I now repair Visual Studio 2017, as it don’t work no more, can’t be repaired, and won’t uninstall.

One word for CUDA Toolkit v9.2 - mal.

Excuse me while I reformat and re-install.