They are little programs with a big job, bridging your computer with an external device. And yes, they go haywire.
A little driver savvy can save you a lot of money on repairs. Mostly, all it takes is a simple upload to put Humpty back together again.
Drivers can become corrupted. Or you have a new operating system that does not use them. Or your device has new features.
Drivers for this reason are a moving target. They remain mission-critical. A bad, wrong or missing driver means your peripheral will not work.