I install Geforce Experience when I need it, which is very seldom, then uninstall when done.
I use CCleaner to manage junk files. I added "C:\Users\rrkurtz\AppData\Local\Temp\NVIDIA Corporation" to the Include list so CCleaner manages it for me.
I found the following;
To delete it, you'll have to go your control panel and select the NVIDIA Control Panel
Click on Manage 3D Settings.
There should be an option there called Shader Cache.
Set it to off and reboot your machine.
It worked, but I am curious as to how you use Ccleaner.
I do e3xactly as I described in my previous post, add "C:\Users\rrkurtz\AppData\Local\Temp\NVIDIA Corporation" to the Include list. Then when I run CCleaner it empties that folder.