Quote:NVIDIA driver slimming utility (NVSlimmer) is a free portable program for Windows to remove unwanted components from Nvidia drivers before installation.
Nvidia graphics drivers have grown considerably in recent time thanks to the introduction of new features and components.
Current drivers install a lot of these components by default even if the PC system does not support certain features or when certain components are not used or wanted.
To name a few: GeForce Experience, Telemetry, ShadowPlay, 3D Vision, Optimus, or backend components required for certain features.
These components take up storage space on the system, may be loaded automatically, and may even submit Telemetry data to Nvidia automatically. There is also a chance that components may have vulnerabilities, like GeForce Experience's node.js back in April 2017.
Administrators and users can do something about it. While it is certainly comfortable to just press install and be done with it, it is usually better to spend the extra minute to install only the Nvidia graphics drivers or at the very least block Telemetry from being installed or disable Nvidia Telemetry.

Full reading: https://www.ghacks.net/2018/10/01/nvtrimmer-remove-unwanted-components-from-nvidia-drivers/