Download, install and use AVG Free Edition and get:
AVG Resident Protection
AVG e-mail Scanner
AVG On-Demand Scanner
Basic Scheduled Tests
Free Virus Database Updates
Automatic Update feature
Easy-To-Use Interface
Automatic Healing of infected files
AVG Virus Vault for safe handling of infected files
oh yea it never expires so it`s really free
And small only 6 megs
