alt Hacker NewsOver my 35 years of computer use, most hardware failures (very, very rare) happen during a reboot or power-on. And most of my reboots happen when installing updates. It actually seems like a very high probability in my limited experience.
Of course, it’s possible that the windows update was a factor, when combined with other conditions.
There's also the case where the hardware has failed but the system is already up so it just keeps running. It's when you finally go to reboot that everything falls apart in a visible manner.