Google search for "windows game install issues" turns up about 27 million results. I know these don't all relate to Windows stability itself, but I did mean it in a broader sense. Also, I'm well aware of the System Restore point feature, but still, I just prefer my PC working (I do my work on it) and any install or driver upgrade is a very real risk of breaking things, and then having to waste precious time fixing them. Not going into companies trying to install increasing amount of bloat alongside the actual game software. Consoles don't have this problem, and I can buy PS4 discs on Amazon. So that.
That risk, especially on Windows 7 and newer, is really just user error.