Download HijackThis from here. Make a new folder for the program and then open it, click Scan. When it finishes scanning, do no remove anything but instead save the log and post it here.
Run an online virus scan from HouseCall(http://housecall.trendmicro.com/housecall/start_corp.asp) and make sure that you delete whatever it finds but isnt able to delete (make sure that auto clean is checked). Also take note of the location of the files that "cant be deleted" by it.
Run an online virus scan from HouseCall(http://housecall.trendmicro.com/housecall/start_corp.asp) and make sure that you delete whatever it finds but isnt able to delete (make sure that auto clean is checked). Also take note of the location of the files that "cant be deleted" by it.