Originally Posted by Computer Genius
Having 2 can make each other retaliate.
yes it can.
But my gues is that companies who make lot's of money from their anti-virus products just make it so that ppl can't use other programs at the same time. Because then there is a smaller risk of their customers changing their AV to another one because they like the other one more.
I've had AntiVir for a long time. Back in the times I had f-secure but it didn't allow AntiVir to install so I uninstalled f-secure. Since then I have been using AntiVir. Then because everyone said that AVG is great I installed it too. Not once did AntiVir or AVG complain about each other. Now I have had them running for a few month with no problems. They even scan at the same time without any complaints.