Thomas_T

As people call that after death soul moves on to heaven or hell, if this is so then I would pray to god that don't send me on that places, I just wanna be with my mom, she has given me a lot of love since my birth, So I can't stay far from her.

A driver is a piece of software your computer needs to understand what's inside the computer. Each computer has different components (hardware) that need to be installed by so-called drivers.
 
Compare it to installing a webcam or a printer, usually they add a CD which installs drivers + other software. The drivers are only necessary for your computer to recognise these devices and make them work. NVIDIA is a Graphic card producer (and a good one, at that). If you are coping with a virus, which I'm not sure of (seeing that your virusscanner doesn't show one) it's definitely not this program.
 
I recommend you boot up your start menu, type in 'msconfig' and press enter. Go to the 4th tab (booting up or something like that) and make a printscreen or a list of items that are on there. I can tell you which ones to untick to make your computer faster.