Last Tuesday Microsoft announced a free anti-virus program. It’s called Microsoft Security Essentials. Right now it’s in beta, and since it was only available to the first 75,000 downloaders, you can’t currently get it. But don’t worry, if you’re in the market for a free Microsoft anti-virus program, you’ll be able to get it soon. Microsoft has said it doesn’t plan on charging for the software. They’re being magnanimous. Kind, if you will.
If you want more details, read this article.