Alright then, here's the plan that should do the trick and have the latest driver running too... Boot to safe mode + networking. Download and run Driver Sweeper from Guru3d.com and let it remove everything NVIDIA it could find. If you have an NVIDIA chipset, be careful about not letting it remove the chipset drivers. Only video ones. Guru3D - Driver Sweeper Reboot into safe mode + networking to obtain the latest NVIDIA driver that I linked to already from their site. Install, then boot to normal mode. If this doesn't work (it should), I'll show you how to use the device manager to specifically install from the .inf.