How to reinstall drivers on windows 7?

Question

Video cards

when working at a computer, the screen turns black and in the middle a window pops up stating that the video card drivers have rebooted and, as I already found out, it is necessary to either update or reinstall the drivers, which of these is better? and how to do it? if not difficult, please explain in detail, the video card is from nvidea and windows 7.

Answer 1

https://www.nvidia.com/Download/index.aspx
select your card, download and run.