AdwCleaner may be all you need.
Remove Adware & PUPs with these tools. Check for updates first and then scan with each one at a time until your machine is clean.
AdwCleaner (Free)
http://www.bleepingcomputer.com/download/adwcleaner/
Malwarebytes (Get the free version)
https://www.malwarebytes.org/free/
HitmanPro (30 day free trial)
http://www.surfright.nl/en/hitmanpro
Junkware Removal Tool (Free)
http://www.bleepingcomputer.com/download/junkware-removal-tool/
If necessary, reset your browsers. For IE:
http://windows.microsoft.com/en-us/windows7/reset-internet-explorer-settings
Some reading:
About those Toolbars and Add-ons - Potentially Unwanted Programs
(PUPs)
http://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/?p=3187642