How do I install the Nvidia driver for a GeForce GT 630

I recently installed 14.04.

But now I need a new driver for my nVidia GeForce GT 630. The former driver was rejected as not compatible with the 64-bit. I found that other driver and when I wanted to install it in the terminal with sh I was called first to stop the x-server. It cannot be installed with running x-server.

So how do I install them?

You can install Ubuntu drivers , for GT 630 you can use: sudo apt-get install nvidia-304 OR sudo apt-get install nvidia-304-updates, not both.