My computer has dealt with many viruses. Including Trojan, once or twice. Right now, its experiencing yet another Trojan and its acting differently this time. Its going to Ask.com w/o cause, almost like Ask.com is the root of this virus,, which actually makes sense... because the last Trojan occurred when I went to Ask.com to look up something. Turns out some random illegal porn had been put on the computer...

Anyway, my question is, how can we save our computer fron having yet another Trojan after we fix this one?

Do you know the name of the trojan/virus?

Norton 360 for viruses
Webroot spysweeper for spywate/maleware

Go the free route and try McAfee Threat Center (http://vil.nai.com/vil/stinger/)
[yes this freebie updates]

It seeks out specific trojans and worms.
List of what it looks for
http://vil.nai.com/vil/Stinger_10_0_1_546_Threats_List.pdf