Should I unselect GeForce Experience when I install or update the NVIDIA graphics driver?

Rather not.

We generally advise against unchecking any component when installing or updating the NVIDIA graphics driver – and that includes GeForce Experience.

You don’t have to use the GeForce Experience software. It does not even automatically start with Windows. But based on our experience, you should not uninstall or unselect it. You can simply install it and leave it alone if you don’t like using it.
 

Why?

We have observed cases where the NVIDIA driver behaved strangely when GeForce Experience was not installed. The prime example of this was an up-to-date laptop with NVIDIA Advanced Optimus, in which the NVIDIA GPU woke up at regular intervals (sometimes several times per minute) and consumed almost 20 watts of energy despite being completely idle.

Such misbehaviour then inevitably puts a strain on the battery life and may also contribute to fan noise emissions.

After reinstalling the NVIDIA driver (this time with GeForce Experience), the misbehaviour disappeared. GeForce Experience was neither started nor logged into: the mere fact that it was installed already solved the problem.

The same applies to other supposedly optional (but selected by default) components of the NVIDIA driver such as: HD audio driver, PhysX system software and the USBC driver.
 

In general

As sad as it sounds, software and hardware is usually tested most intensively by manufacturers with default settings. Every adjustment made by the end user, in which components are arbitrarily removed or deactivated, has the potential to trigger hidden errors that have fallen through the cracks during testing. This is especially true for the NVIDIA GeForce GameReady driver, which is updated extremely frequently by NVIDIA (usually twice a month, all year round).

The need for the graphics card to shut down completely when not in use has the potential to make the NVIDIA driver the Achilles heel of the system in terms of power consumption, fan noise and battery life. We therefore advise greater caution here and to follow the rule of keeping it simple.

 

How often should I even update the NVIDIA driver?

This question is answered in a section of the previous FAQ article: Do I need *all* drivers or is it enough to just install the most essential ones?