How to enable hidden function in Win8 system

Contrast Windows
7, some of the latest Win8OS
functions are not so easy to find, so how to open the hidden function in Win8 system? I have a way to open the hidden function in Win8 system, I hope to help everyone.

Turning on hidden functions in Win8 system

Windows 8 native PDF reader starting method

in HKEY_LOCAL_MACHINE\\\\SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\ Under Applets\\Paint\\\\Capabilities

create a key-value "CLSID", assign “{D3E34B21-9D75-101A-8C3D-00AA001A1652}” , and then run glcnd.exe.

Start Ribbon UI in Windows Explorer. Just need

in HKEY_CLASS_ROOT\\\\CLSID\\\\{4F12FF5D-D319-4A79-8380-9CC80384DC08}

Create Key Value"AppID", Assign "{9198DA45-C7D5-4EFF-A726-78FC547DFF53}"

Start camera application key:

HKEY_LOCAL_MACHINE\\\\Software\\\\Microsoft\\\\Windows NT\\\\CurrentVersion\\\\GRE_Initialize

Create a DWORD named "RemoteFontBootCacheFlags", set the value of 0times;100f (4111)

Then run webcam.exe

and take a look at Task Manager