Current worm warning should be taken very seriously, immediately
If you're like me, then you're probably one of those people who often procrastinates when Microsoft's Update component either tells you it has updates to install, or asks if you want to reboot now or later (after installing an update). Because of whatever applications I have open, what's going on in those apps, and what a pain it would be to get back to that state, the loss in productivity means that I can almost never afford to reboot when Microsoft Update wants me to.