McAfee VirusScan detects, blocks, and removes viruses and spyware, that may result in the loss of your irreplaceable documents, such as digital photos, family movies, and financial spreadsheets, identity theft and slower PC performance.

Spyware surreptitiously monitors your computer and Internet use, while adware can bombard your PC with unwanted advertising. Both pose a drain on your bandwidth and can lead to loss of security.

Windows Defender is a free program that helps protect your computer against pop-ups, slow performance, and security threats caused by spyware and other unwanted software. It features Real-Time Protection, a monitoring system that recommends actions against spyware when it's detected and minimizes interruptions and helps you stay productive.