In order to update the video card driver, you must first download its latest version from the manufacturer's official website. Since we have only two manufacturers of graphic chips (these are nVidia and ATI), the sites //ati.com and // nvidia, respectively. ru. Links to download drivers are right on the main pages of the services.
The drivers themselves, in turn, are equipped with installers, which means that you can install or reinstall them like any other program.
It's another matter if the driver needs to be reinstalled for the reason that its old version does not work quite correctly. In this case, you will have to go a more complicated way. The old driver must be removed first. To do this, you can use both built-in tools and programs from third parties.
If you remove the driver using Windows tools, you need to go this way:
Right-click on the My Computer icon, then select the Manage option, then Device Manager. There, in the graphics adapters, we find our video card, select the delete option.
Sometimes this is not enough, so you need to use special programs. An excellent example is the free Driver Cleaner Pro (the Platinum version already costs money, and in terms of capabilities it does not differ much from the free one). The only thing to remember is to run the program in Windows Safe Boot Mode. To go to it, in the process of booting the computer, press the F8 key and then select the appropriate item.
The actions described above will be enough even in the event of a serious software error in the driver, and after solving the problem, it will be possible to install or update the video card drivers on a clean system.