Since updating my driver I can't make any changes in control panel, even when running as administrator. Any ideas?

You might want to roll back to the previous driver?

Same problem, I rolled back and I'm back up.

Came across this error yesterday. Had a look on the nvidia forums, and turns out GeForce Experience is the culprit of all this. The automatic update must have configured our settings without our consent. So what I did was uninstalled GeForce experience, and reinstalled my drivers then it was up and running. 
If you want to keep Geforce Experience, then just make sure the "automatic update" is unchecked so this won't happen again. 
But if in doubt, reinstall your drivers and you should be good to go. 

Mykel Talab

Thanks gents, uninstalling Geforce Experience did the trick. Either that or just updating to to the latest whql, not quite sure...