Default Touchwiz home launcher

Can someone tell me how to find touchwiz home launcher in KK 4.4.2 system ui, using root explorer? I want to attempt to replace the home screen swipe up with google search instead of the magazine app. THANKS

Edit: Just installed Nova Launcher, force stopped TouchWiz home cleared caches, and ""Unfortunately TouchWiz home Has Stopped" click ok does not appear when you click home button twice.