Leaks are not always the most reliable source of information, especially in a time where it is relatively easy to create believable fakes. The most recent leak appeared first on a Chinese Windows news site. The screenshot shows part of a Control Panel applet called Restore this computer.
http://windows8news.com/2011/03/25/leaked-screenshot-shows-windows-8-system-reset-controls/
http://windows8news.com/2011/03/25/leaked-screenshot-shows-windows-8-system-reset-controls/