There’s more chance of breaking something than anything else, so if everything on your PC is working just fine, you can skip the driver updates for the most part.
There’s a notable exception to this rule, of course.
If you’re trying to eke out every tiny bit of performance out of your system, you should make sure that your video card drivers are updated using the manufacturer’s drivers, and you probably want to upgrade your chipset, networking, and sound card drivers as well.
If you’re looking for a speed boost, updating your drivers to the latest version isn’t a magical speed enhancement that will suddenly remove the need to upgrade a slow PC.
If you’re upgrading from one version of a driver to another version, chances are good that the only things included in those updates are bug fixes for specific scenarios, and maybe some very minor performance increases.
Talk to any tech person, read any forum, and at some point you’re sure to be told to update your drivers… And is it necessary to compulsively update your drivers? In very simple terms, drivers are computer programs that let Windows and your other applications interact with a hardware device.
Your computer doesn’t natively know how to use all the features of your video card—it needs a driver to do that.
Just like computer programs have updates and service packs to fix bugs and add features, drivers do as well.