According to the testing done of 11 programs by Consumer Reports ---
* these FREE programs are all recommended: Avira, Microsoft Windows Defender, and Spamfighter Standard. But they don't have all the features of paid security programs shown below.
* top subscription suite is Eset Smart Security and it costs the most.
* number 2 is McAfee, which is what we use, and CA
* #3 is Microsoft Live OneCare, and #4 is Symantec. Others follow ie Kaspersky, BitDefender, Trend Micro, F-Secure, CA, Check Point and PC Tools.
The Criteria? = Scanning speed, the CPU resources used, detection quality, scanning of emails, ease of use, child filters, anti-spam performance, files backup and cost. Lots to consider for safe computing.