Download and run ComboFix - the best virus spyware remover program in the world.
If you are unable to run combofix because your system is so infected download it from another computer and save it
to a USB drive and reboot the infected computer into safe mode and then run ComboFix.
After you run Combo Fix in SafeMode reboot and run Combo Fix again in Normal Mode.
Run a scan with your regular anti-virus program now.
You should be good to go and viruses free if not backup data and reload operating system