Microsoft Security Essentials is a free anti-virus program.
All of the free anti-virus programs out there have usually pretty quickly fallen out of favour with me, in particular the previous community darling AVGFree.
Having a free option from Microsoft, that performs extremely well with minimal resource usage, is a boon.
For privacy reasons, you might want to opt out . . . → Read More: Free Anti-Virus: Microsoft Security Essentials
