I too spent 3 days trying to get rid of the antivirus xp 2008. It completely took over my computer. The antivirus I was using, VIPRE, would detect them and say they were quarantined but it kept coming back. After I deleted enough of the viruses, I was able to get online and download...
I have been computer repair/system admin for 20 years but, I can always learn more. I have used this forum in the past (forgot my original sign in) for problems that came up and always found the help I needed.