Best free antivirus?

[kiwi_2005]

Originally Posted by onelifecrisis

I'm actually using Microsoft Security Essentials at the moment.

And it seems to work fine!

When i tried MSE I get wicked slowdowns. Did a big clean up of main pc like i do once a year - reformat and reinstall XP/Vista dual setup. Decided to try MSE on a clean system but still get the same results. Gets that bad that I can't move the mouse at times. So im just running the free version of Avira atm