How to open the hidden function in Windows 8?

Windows 8 beta looks more like Windows 7? Actually it is not. Due to development reasons, some functions have been hidden. For example, the native PDF reader, Ribbon UI interface and camera application can actually use the registry key. The value is modified to be implemented. The following is the method: Windows 8 native PDF reader startup method creates a key value under the HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Applets\\Paint\\Capabilities, and assigns a value to the value of "CLSID",{D3E34B21- 9D75-101A-8C3D-00AA001A1652}” , then run glcnd.exe. Start Ribbon UI in Windows Explorer. Just create the key value "AppID" in HKEY_CLASS_ROOT\\CLSID\\{4F12FF5D-D319-4A79-8380-9CC80384DC08}, Assign "{9198DA45-C7D5-4EFF-A726-78FC547DFF53}" Start camera application key: HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\GRE_InitializeCreate DWORD named "RemoteFontBootCacheFlags", set value0&0&s;100f ( 4111) Then run webcam.exe and take a look at Task Manager