Which OS are you using ? Maybe try doing a FRESH Windows OS re-install ?? Just make sure you are installing the GAME ready drivers/GRD, and not the Creator version/CRD. Also, there are 2 driver types, DCH and Standard. Which one did you install ?
DCH drivers cannot be installed over Standard Drivers, and Standard Drivers cannot be installed over DCH Drivers. The choice must be made after a cleaning via DDU.
To check which display driver type you need, right-click over the Windows desktop -> select NVIDIA Control Panel -> click on the System Information link on the bottom left hand corner of the NVIDIA Control Panel -> look at text that follows “Driver Type”. You should see one of the following : DCH or Standard, assuming you are able to install the drivers.
Also make sure you are installing the correct driver version as well, i.e 64-bit if using a 64-bit OS, and not 32-bit.