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AntiVirus compatibilities


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#1 mdsimmons

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Posted 04 February 2011 - 05:15 PM

I've been running Avast (Free) and Microsoft Security Essentials (MSSE) together for several months. I recently built a new box and included Windows 7 Professional. I installed new apps for Avast and MSSE (did NOT install Windows Defender, but disabled it when it appeared), and everything ran fine until the last Avast update. Since then, I consistently receive threat warnings, listing 33 instances of msmpeng.exe, each defining a different trojan, worm, virus, info, etc.

I've been corresponding with Avast tech support, and tried their suggestions, but I still get the same threat warnings. When I run MalwareBytes and SuperAntiSpyware, neither one throws any flags. I don't want to uninstall Avast or MSSE, and thought about disabling all features except the mail scan in Avast. Anybody have problems like this?
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#2 Allan

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Posted 04 February 2011 - 05:20 PM

You must not run two anti virus utilities simultaneously, and it is not a good idea to have two installed. Please uninstall one av and keep the other resident.

#3 Jacee

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Posted 04 February 2011 - 06:07 PM

Anti-virus programs are resource hogs. Having two running at the same time will create competition for your system's resources and they could possibly detect each others definitions, as you've already found out:

"I consistently receive threat warnings, listing 33 instances of msmpeng.exe, each defining a different trojan, worm, virus, info, etc"

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