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AVG Anti-Virus and Avast! 4 Professional Edition running programs at same time bad or ok and if which to stay?

Iv got AVG Anti-Virus and Avast! 4 Professional Edition programs running at the same time and wondering if both of them are open will a conflict with the programs start or a virus slip in? If so which do i stay with and if not is it safe for both to be open?

Public Comments

1. You should only have one running at a time.Avast free is much better than AVG, so I guess the pro version would be miles ahead of it.Go to www.threatfire.com and get free threatfire.It's an anti-virus but it's made specifically to run alongside another anti-virus.I use it and avast free and nothing has even gotten past both of them running together.
2. Run only one program, because even if made by the same company they conflict
3. If you run 2 anti-virus at the same time, each one considers the other a threat when it is active, this makes then block each other. I have known this to reduce security by up to 60%. My customers and myself have all used AVG since its' release and it never lets us down. Now AVG 8.0 covers anti-spyware that is all we use, except on one or two more critical machines, where I have installed the spyware doctor starter edition from google updater, which includes an imuniser as well. 2 anti-spyware seem to co-exist with no trouble.
4. You could keep both, but you should NEVER run them at the same time to avoid conflicts. Why I say to keep both is that there are viruses that can be found in one program but not the other and vice versa. Here's one option: leave only one of them on for real-time scans. Which one is your choice. But when doing manual scans, turn off the real-time scan if you're using the manual scan of the other if necessary. Manual scan with one, then manual scan with the other after it's done. Be sure to exclude the quarantine folders of the other antivirus program from the scan, or you'll be bouncing quarantined viruses between the two, back and forth. Both AVG and Avast! are good antivirus programs. Again, it's simply a matter of choice.
5. Never use 2 antivirus together. Antivirus softwares will conflict with each other. And what more, that would possibly slow your PC down dramatically. If you ask me, I would rather use AVG than Avast.