If you are trying to change settings in NVIDIA Control Panel but can't save the settings, follow this post and apply these fixes to resolve the issue.

Understand the difference between Nvidia Control Panel and GeForce Experience. Learn how to open Nvidia Control Panel, GeForce Experience and record your screen or gameplay.

If NVIDIA Control Panel keeps crashing when accessing Manage 3D settings section on your Windows 11/10 PC, then use these fixes to solve it.

But perhaps most importantly, Nvidia's new app allows you to update the driver for your graphics card, the one you paid for, without having to log in to an Nvidia account.