Anti-Virus (PLEASE READ)

I need the best anti-virus software you use. My computer is infected with major infections/viruses. I managed to actually get it to run to my last configuration. Do not say AVG, that is what caused this in the first place. Try to make sure that it is a free software. I am going to try to system restore while I wait for a reply, wish me luck. (I am using my sister's computer to write this)

USE AVG FULL INTERNET SECURITY THAT'S ALL

try clamwin, but to be honest the virii are likely to stop you installing antivirus programs.

Try either Comodo internet Security with their Firewall and Anti-virus.
It is very useful and has saved my computer a few times.Avast is good as well, but just use Comodo Firewall if you go with Avast.

Thanks for your help, also I am going to try and boot it with a flash a drive. My internet is disabled and I can't open up Task Manager, I will try your suggestions.