This video is a guide how to remove Weknow.ac from Google Chrome on MAC OS.
Brief removal steps
1. Launch Terminal and put next commands
defaults write com.google.Chrome HomepageIsNewTabPage -bool false
defaults write com.google.Chrome NewTabPageLocation -string "https://www.google.com/"
defaults write com.google.Chrome HomepageLocation -string "https://www.google.com/"
defaults delete com.google.Chrome DefaultSearchProviderSearchURL
defaults delete com.google.Chrome DefaultSearchProviderNewTabURL
defaults delete com.google.Chrome DefaultSearchProviderName
2. Restart the system
3. Reset Google Chrome settings
4. Scan the system with favorite antimalware scanner (optional)
Thanks apple discussion forum and other people, who helps to protect the browsers.
Text article: http://pcfixhelp.net/ads/4626-how-to-...