The last time I booted Windows was at work this morning. As for my own personal computers, it would have been a few weeks ago, when I updated some software on it. Of all my computers, I only have Windows on my notebook, which usually runs Linux. My notebook, an IBM ThinkPad, runs Linux reliably, but often locks up solid with XP. Last time I saw a Windows blue screen was yesterday, on another computer at work. Again, XP was the culprit.