I inadvertently acquired this nasty little beast this week. I imagine it piggy-backed on another program. I have uninstalled everything I downloaded this week, including cleaning up the left-over bits after initial uninstall. I can find no trace of this program on my PC. Nevertheless, it reappears whenever I boot up. It starts to scan my PC and, if I don't catch it in time, then demands money to clear up the things it claims to have found. Irritating. Any ideas?