I think it's still not advisable to run two antivirus programs. They will keep competing for the same resources at the same time. I would suggest using just the

I think it's still not advisable to run two antivirus programs. They will keep competing for the same resources at the same time. I would suggest using just the "better" one. Also, a lot of what AV software does goes through kernel. That's the only way to ensure that its work is not preempted and that it can maintain security of the system.