If you think your computer may be infected try several of the following free independent scanners:
Emsisoft Emergency Kit: http://blog.emsisoft.com/2015/06/09/how-to-find-and-clean-malware-infections-with-emsisoft-emergency-kit/
ESET Online Scanner: http://go.eset.com/us/online-scanner
Kaspersky Virus Removal Tool: http://www.kaspersky.com/antivirus-removal-tool?form=1
Malwarebytes Free: http://www.malwarebytes.org/products/malwarebytes\_free/
Regards…
https://blog.malwarebytes.org/online-security/2016/02/how-to-avoid-potentially-unwanted-programs/
http://blog.emsisoft.com/2015/01/27/top-10-ways-pups-sneak-onto-your-computer-and-how-to-avoid-them/