Many users have spotted that Windows 10 Anniversary Update downloads and installs some games and apps automatically. Without the user even opening the Store, or asking for his or her permission, the operating system installs some apps like Candy Crush Soda Saga, Minecraft: Windows 10 edition, Flipboard, Twitter and some other apps. Earlier, you could prevent Windows 10 from installing them using a Registry Tweak, but it does not work any more in version 1607 "Anniversary Update". Here is the alternative way to prevent these apps from installing.
Stop Windows 10 Anniversary Update from installing Candy Crush and other unwanted apps