I am running windows xp on my system and have installed Zone Alarm which runs Firewall. There is an Avast antivirus which saves my system from the viruses. Since i have updated this avast on my system, I have seen that my system runs much slower. Web pages are taking much more time to load and most of the time i am getting "page cannot be displayed". But on refreshing the page...it gets perfectly loaded. What would be the problem?
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