This is a well discussed area. As there are so many to check today the antivirus suites must be larger.
http://www.cknow.com/cms/vtutor/number-of-viruses.html
If RAM is the issue, is it time to use another OS that doesn't have this issue? Such as Linux?
Bob
The new version of avast occupies a lot of space. i would rather choose avg 2015. no one has enough money to spend lot of his money for just a ram. Instead of that he could switch to anther antivirus programs

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