Security: Free Antivirus – Firewall – Encryption – Backup
- Check the security on the network : Nmap/Network Mapper
- Antivirus: AVG Free
- Antivirus: AntiVir
- Antivirus: Avast Home Edition
- Antivirus: BitDefender Free Edition
- Backup for file and directory: Replicator
- Anti-spyware: Ad-Aware Personal
