> Windows XP and earlier was a horrible era for stability and security
Huh? Windows XP was the first NT-based release for home users. It was a milestone in stability.
Sure, but there were also multiple points in time (even after SP2) when you had to unplug the network to install it, because in a couple minutes of being online or in a large LAN it would get infected during the setup and shutdown. You also needed all updates and a third-party firewall on a CD. Win+R shutdown /a is still in my fingertips after all these years.
XP was godawful for years security- and stability-wise until the release of SP2.
It was more stable after the SP2, but initially it was undermined by buggy drivers and rampant malware, NT kernel or not. True, it was better than ME…
What most people remember of XP now is what it became after a couple of years of fixes and improvements, and the contrast with Vista.