I have a dell dimension desktop, in that I am running windows 7 and for avoiding it from affecting the viruses I have installed avira antivirus software, but it can just scan the local drive only, I mean to say that it cannot protect the machine from the outside such as internet, in fact the online protection is been disabled automatically, and I have tried a lot to enable it but after some time it again get disable. Any idea why this is happening.
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