Download and run combofix and tksskiller. They will clean up any system! If your tksskiller doesn't finish initializing to run the program, the virus is in your master boot record.
Combofix will download a microsoft safety boot when you run it so then you can select that option before the computer fully boots up, choose your network (probably #1) and then type FIXMBR. That got a NASTY virus off my computer.
