If nothing works, you might have to uninstall NVIDIA Graphics Card and then install it again.
#7) Uninstall NVIDIA Graphics Card Driver If you still can’t open the program, disable it or, in the worst-case scenario, uninstall your antivirus and then check if you can open NVIDIA Control Panel now. If not, disable all the features of your antivirus and try opening NVIDIA Control Panel again. To fix this issue, go to the settings of your antivirus and make sure it is not blocking the program. Some antivirus might interfere with the program, preventing it from opening.
After the driver is updated, restart your system. If this doesn’t happen, that means your driver is already updated. The wizard will install automatically if there is an update available. Here is what you can do if NVIDIA Control Panel won’t open. There could be an issue with the installation of the tool. There are many reasons you might not open NVIDIA Control Panel. Solutions To Fix: Can’t Open NVIDIA Control Panel