Antivirus/antimalware software is more important than ever. As a bare minimum, students should install one of the following free antivirus tools to ensure your computer is protected. If you have purchased a commercial product, you do not need these tools.
Note: You should only install one antivirus product at a time. If you are changing from AVG Antivirus to Microsoft Security Essentials, you must first uninstall AVG.
Microsoft Security Essentials