We have tried a number of Antivirus programs over the years; Norton Antivirus, Panda Internet Security, Trend Micro Internet Security, and Eset Nod32. Norton Antivirus missed viruses and slowed your computer down, Panda Internet Security, again slowed your system down and at times caused conflicts with the computer. Trend Micro Internet Security was slow booting; sometimes adding an extra 3 minutes to boot time depending on your system.
No one Antivirus program is perfect, but of all the programs we have tried. Eset Nod32 has been the best. The other Antivirus programs we have found lacking; see chart for details.
Because no Antivirus program is perfect, we recommend that you have your system professionally cleaned at lease once a year. You take your car for an oil change or go to the dentist once a year, what about your computer? It too can benefit from a tune-up.
Remember computers are not black and white; they are a Gray Matter!