Hi buffy_92,
Read this: http://www.securelist.com/en/descriptions/7101543/Trojan-Clicker.HTML.IFrame.amg and see whether your host file has been tampered with trojan clicker Use system restore to get your computer to an earlier clean state: http://www.precisesecurity.com/tools-resources/troubleshooting/restore-windows-vista-or-windows-7-to-an-earlier-date/
polonus