I've got an ancient of days, Windows XP machine, which I use when I have to do maintenance on our old VB6 apps.  I finished doing some maintenance, and was shutting down the machine.  When I went to shut it down it said it had some update to install and then shut it down, so I went ahead and told it to install and shut down.  That was probably 4 hours ago.  It was still trying to apply the update and shut down.

But of course life intervened.  We had a power fluxuation (?sp) and lost power to several user machines, the lights in most offices flickered, and of course my old PC took the power hit as well.

So, do I concern myself with the fact that whatever it was, didn't install?