McAfee's VirusScan is an excellent utility for catching any viruses that may be hiding out in the darkest recesses of your hard drive. Its graphical interface is both visually appealing and intuitive. VirusScan's VShield component can run in the background, allowing you to continue working on other projects while it does its job.
VirusScan's on-line help documentation provides useful insight into the program's many options. These options include the ability to configure the level of scanning desired, the ability to keep and/or print an activity log, and several additional user-configurable preferences.