This application beats the most annoying feature of Windows 8 – auto pinning the installed software to Start Screen. With this little tool you can temporary disable pinning feature, then you can install everything you want and it will not be pinned. After that you can unlock pinning feature again.
Also AutoPin Controller will allow you to reset the Start Screen with one click: it will remove all tiles/shortcuts and set them to first logon state.
Typical scenario of usage is following: