Well the reason I mentioned it is that it didn't just say that a firewall was active, it expressly said that Mcafee firewall was active. But I suppose it could still mean windows firewall. I suppose I will take it to the networking section, as I'm assuming that perhaps one of the things that had infected the computer did something which is causing the error. And thus, we removed the infections but now i'll have to discover what damage it caused so that it can be fixed. That seems to be the most logical explanation anyway. Well thanks a lot for your help; you've gotten her computer running again, now I just have to deal with the internet. Which, I must say, involves a great deal less stress.