Hi,
Make sure to update the graphics card driver first and you can get the latest driver there is from NVIDIA site.
- First uninstall the old NVIDIA driver from Device Manager.
- Uninstall from Programs and Features anything related to your graphics.
- Download and install the latest driver from NVIDIA.
- Here's the link: nvidia.com/download/index.aspx
- Reboot your PC once the driver has been installed.