If you see "Standard VGA Graphics Adapter" in your Windows 7 64-bit Device Manager, it means your computer is using a generic placeholder driver. While this allows you to see your screen, it often leads to low resolution, laggy performance, and an inability to run games or high-definition video.

Click the button, type Device Manager in the search bar, and press Enter . Expand the Display adapters section.

Right-click on and select Update Driver Software . Choose Search automatically for updated driver software .

This is the easiest first step, as it lets Windows try to find the driver for you.