You will need to know the model of your GPU if your system came with one, and then proceed to the correct website to download and install video drivers.

You can find out what GPU you have by reading the description/title on your computer's order page/receipt. You can also find out by going to Task Manager, hitting "More Details," and clicking the Performance tab. Select "GPU 0," and the name should be listed in the top right of the window.

Here are a few common GPUs and whether they are AMD or NVIDIA.

AMD GPUs
Download drivers here: https://www.amd.com/en/support

Radeon

RX 570
RX 580
RX 5500XT
RX 6400
RX 7900XTX


NVIDIA GPUs
Download drivers here: https://www.nvidia.com/en-us/geforce/drivers/

GeForce

GT 710
GT 1030
GTX 1050 TI
GTX 1060
GTX 1650
RTX 20xx
RTX 30xx
RTX 40xx