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Multiple Virus Software


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#1 Junior2007

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Posted 24 September 2007 - 09:26 PM

Hello,

I have been running AVG free anti virus for a while on my HP with Vista Home Premium. After discovering this site, and searching for more information, I read about Avast Free anti virus. It got great reviews from several sources. I downloaded/installed, and all is well. Now, I'm reading that people discourage against running 2 virus programs on their computers. Is this bad? Good? Recommended? Discouraged? Any input is welcome, thanks.

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#2 tg1911

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Posted 25 September 2007 - 12:08 AM

Can you have more than one resident Anti-virus program running in real time?
Can you? YES
Should you? NO
Is it a good idea, do you get better protection? NO

The danger, is that one antivirus program may (read this as eventually will) see the others definition files as viruses, and will remove them. This is not so much a problem with manual scans, where you only run one Antivirus program at a time, if you pay close attention to what it detects, and where. If you manually configure it to ignore the other program, and its files, then you minimize the risk from this problem.

The big problem, is the silent threat. Most antivirus programs will scan web based (not necessarily all, like P2P, and IM) file transfers. It is quite common, for one antivirus program, to detect the incomming virus updates for the other. Thinking parts of the definition files are viruses in their own right, the AV will strip these out of the update.
The end result? Instead of having two, or even one, up to date fully functional antivirus programs, you have two severely crippled programs, which are each missing critical definition, and detection files .

So, it is best to have one antivirus program, and keep it up to date and use it properly.
Then, if you experience a problem, or question its efficiency, you run an online scan:
BitDefender
http://housecall.trendmicro.com/
MOBO: GIGABYTE GA-MA790X-UD4P, CPU: Phenom II X4 955 Deneb BE, HS/F: CoolerMaster V8, RAM: 2 x 1G Kingston HyperX DDR2 800, VGA: ECS GeForce Black GTX 560, PSU: Antec TruePower Modular 750W, Soundcard: Asus Xonar D1, Case: CoolerMaster COSMOS 1000, Storage: Internal - 2 x Seagate 250GB SATA, 2 x WD 1TB SATA; External - Seagate 500GB USB, WD 640GB eSATA, 3 x WD 1TB eSATA

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#3 Junior2007

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Posted 25 September 2007 - 08:18 PM

Thanks for the response. I had been running AVG antivirus. It worked well, and was recommended. I just recently installed Avast antivirus based on it's reputability, rated even better than AVG. I uninstalled the AVG and now will use Avast exclusively. Thank you again for the help.

#4 tg1911

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Posted 25 September 2007 - 09:18 PM

You're welcome, Junior2007.
Glad I could be of help.
MOBO: GIGABYTE GA-MA790X-UD4P, CPU: Phenom II X4 955 Deneb BE, HS/F: CoolerMaster V8, RAM: 2 x 1G Kingston HyperX DDR2 800, VGA: ECS GeForce Black GTX 560, PSU: Antec TruePower Modular 750W, Soundcard: Asus Xonar D1, Case: CoolerMaster COSMOS 1000, Storage: Internal - 2 x Seagate 250GB SATA, 2 x WD 1TB SATA; External - Seagate 500GB USB, WD 640GB eSATA, 3 x WD 1TB eSATA

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