Avast Free Antivirus a the free for non-commercial and home usage antivirus solution from AVAST Software. The program features intuitive, advanced and customizable scanning methods along with other modules dedicated to computer safety.
Kaspersky AntiVirus offers protection from a range of IT threats and provides the basic tools needed to keep your PC secure. Premium features include: Parental Control, Online Payment Protection and Secure Connection (VPN).
ESET NOD32 Antivirus is an innovative host-based intrusion prevention system that offers a comprehensive scanning solution. Most importantly, it will not slow down your PC, it's easy to use, and easy to install.
Bitdefender comes with real time scanning that is called Virus Shield and an auto-scan mode that checks your system when the computer is idle. Game mode is fully automated and will be enabled when it detects a full screen application running.
HitmanPro (formerly Hitman Pro) is an on-demand malware scanner and removal tool. It will usually do a full-system scan significantly faster than other (traditional) solutions due to its cloud-based scan technique.