Should I keep 3 antivirus in my computer or just one?

I have 3 antivirus in my computer. Norton, Avast and Avg. Do they conflict with each other? Can they even cause problem for my system? If so which one do you guys think I should I keep?

Should I keep 3 antivirus in my computer or just one?mcaffee

They conflict with each other, so I don't suggest having 3 antiviruses

Should I keep 3 antivirus in my computer or just one?norton antivirus 2007

I have used AVG Anti Virus, Zone Alarm Firewall, Spy-bot Search and Destroy and Ad Aware both spyware killers for years. They are all free for personal use and I have had no trouble with Viruses Trojans etc. AVG does not slow the system down as much as some other products and Zone Alarm allows a lot of personal configuration unlike the Windows Firewall. They can all be downloaded from the following linkhttp://www.computeractive.co.uk/. On the home page select downloads and then the appropriate category.I also use Windows Defender from the Microsoft site. It is safe to use two anti-spy products but never use more than one A/V as it can cause conflicts. You should run A/V and anti spy weekly. Hope this helps
AVG and Norton conflicted on my computer.

As for which one....well AVG is free and seems to work so I can't see the point in paying for Norton.
Yikes, I'd stick with one. If you've got norton, ditch the others, they are not nearly as good anyway. They can definitely conflict.