Please be more clear about what you mean by installing drivers in a desktop using a laptop. My best guess is that the laptop is connected to the internet and you need to use it to download drivers,which you will then install in the desktop, but it really needs to be made clearer.
It will depend on the make and model of the video card or, if it's a prebuilt system, the make and model of the PC. Also on the operating system. So please provide this information and a clearer picture of what you are trying to do.