I noticed MSE wasn't brought up on the forum yet, if im not mistaken that is.
For those who havent heard, microsoft came up with a free anti-virus solution, that can be downloaded from their website:
www.microsoft.com/Security_Essentials/
I personally installed it on my Win7, i found that their claims are true, it really doesnt bug the user AT ALL, last time i got a notification was when it found a severe case, it doesnt even require manual updating nor does it take up alot of ram/cpu usage.
What do you guys think about it ?