Windows 8 leaked build 7850 has been available for download from torrents, some sites posted how hidden features in Windows 8 build such as Windows Explorer ribbon UI, Webcam app, Windows 8 PDF Reader and Modern tasks manager can unlocked though registry hacks, Windows 8 Beta and Windows 8 Search have developed a small tool, Windows 8 Tweaker helps Windows 8 build 7850 users to unlock these features with a single click.
How to Use Windows 8 Tweaker
Download and run the tool. You can enable above said features one by one or all at a time by clicking “Enable all Hidden features”.