GPU not Listed under Device Manager in Windows 8 - Windows 8

Hey, guys,

Recently, I have upgraded the operating system of my computer to Windows 8 Ultimate, and it is working efficiently. While suddenly I realized that my graphics card is not showing anywhere on my laptop. I checked it in both Control Panel and Uninstall Programs and I found the Nvidia driver. Although the driver is there, I can't see it under hardware, and it dose not on the toolbar. As a computer novice, I have no idea about the reason and the solutions.

Any computer talent to give me a hand?

Many thanks!

Can we get a snip of the device manager GPU tab?