If you stop and think about it, a Windows PC is a pretty amazing machine. That little box (or big box, if you use a desktop) contains dozens of small components most likely made by different companies, in different factories all around the world. All you have to do is press the power button, and Windows makes everything work together.
Except sometimes it doesn’t. Instead, one of those dozens of small components is causing you endless pain and suffering every time you turn the darn thing on.