Over the last years nvidia got some problems with updating... I don't use geforce experience so I always chose custom install and then deselect everything but the core driver as long as the rest had the same version.i exagerated a little.
I didn't have 100 updates ! It was just to say that there was some of them.
What was strange in this case is that my graphic cards have been well recognized, a recent drver have been installed (June 2018), but i could not upgrade. I always don't understand why i can not install the last driver from nvidia website but can install this driver with geforce experience. The only difference is that i had to create an acoount i hate such method.
Important for me now is that i can keep on with my new pc configuration, install games etc... playing is all that count the pc itself is just a box
Then at some point it started to either not install the driver, uninstall the driver or uninstall other parts like physx etc.
Since then I always just use the default or just not update at all as I never experienced any performance boost for games older than one year.
I guess something similar happened to you!
One way would've been to use ddu to wipe windows off any gpu drivers and then install it freshly. The mild way would've been to just uninstall the driver from the system manager.
Doesn't matter now anyway, you got it done
Hope you like playing everything on max settings with your ultra wide screen