First of all keep in mind that NO antivirus is 100% effective. Download the following tools. We may also need to reset your internet options.

http://www.downloadcrew.com/article/29166-adwcleaner

http://www.majorgeeks.com/files/details/malwarebytes_anti_malware.html

http://www.majorgeeks.com/files/details/kaspersky_tdsskiller.html