try SASand have u tried CCleaner also even when u buy a av u dont get much help,ive had similar problems and i have norton360 version4 and still get infected but i downloaded a few sites to help and they did ie malwarebytes antimalware and SAS then at a later date CCleaner or try this http://www.lavasoft.com/single/trialpay.php see if that helps let me know,good luck! nightmare all these viruses!!