Avast Software - 56,22 MB (Non-Commercial Freeware) ( Download Avast )
2. AVG Free Edition 2012
AVG Technologies - 151,30 MB ( Freeware ) ( Download AVG )
3. AntiVir Personal 12.0.0.861
Avira GmbH - 80,45 Mb ( Non-Commercial Freeware ) ( Download Avira )