What to do:
1. scan your system for malware / adware
use malwarebytes antimalware (free version) ==> https://www.malwarebytes.org/
and adwcleaner http://www.bleepingcomputer.com/download/adwcleaner/
2. some malwares could modify the HOSTS file ==> restore the default HOSTS file: http://www.thewindowsclub.com/how-to-se ... to-default
3. reset chrome: https://support.google.com/chrome/answe ... 4?hl=en-GB
4. doesn't work ?
uninstall chrome
reinstall from ==> https://www.google.com/chrome/
5. install adblock plus ==> https://chrome.google.com/webstore/deta ... fddb?hl=en