Hi there and welcome to
CompuForums! Be sure to visit us often and post in other topics.
I have moved this thread to here as the introductions forum is for only introducing yourself. We like to keep things organised
Secondly, if your antivirus has been taken over, you may want to try this online virus scanner:
http://housecall.trendmicro.com/
I have used it myself and it's very efficient.