I've gotten a number of emails and questions regarding the April 1 worm, or the Conficker worm. For those who asked me, I didn't know anything about it until today. What I understand is that it infects Windows systems and will activate on April 1, 2009 and run wild.
As usual, I don't keep up with security concerns around Windows because I don't use Windows (and neither should you). However, Microsoft has put together a nice page explaining the problem if you think you have it:
If you really are interested in removing malicious software from your system, consider dumping Windows entirely. I doubt the Microsoft tool will do that, so you are better off installing Linux. I recommend Fedora.