The Norton Antivirus 2013 edition provides 1 user licenses and is one of the best web security software available today. With SONAR 4 Behavioural Protection and Download Insight 2.0, it is ideally positioned to protect your computer systems. Highlights Version Norton Antivirus 2013 System Requirements - Microsoft Windows XP; Microsoft Windows Vista; Microsoft Windows 7 Operating Systems Hardware Requirements 300MHz to 1GHz CPU, 256MB RAM, 300MB Hard Disk Space, CD/DVD ROM drive No. of User 1 Symantecs Norton Antivirus 2013 edition creates a protective shield around your computer systems by integrating the revolutionary technologies of SONAR 4 Behavioural Protection and Download Insight 2.0. It keeps viruses, spyware and other malicious entities away from your computer systems. Resolving obscurity around chatting, emailing and sharing files, the Norton Antivirus 2013 software provides browser protection, network threat protection & vulnerability protection. Additionally, it provides complete online protection and keeps your system safe from any impending virus attacks and provides you a notification about the same. The Norton Antivirus 2013 edition comes with 1 user licenses and is suitable for business environment.