How do I turn on the hidden features in Windows 8?

Does the Windows 8 beta look more like Windows 7? In fact, some of the features have been hidden for development reasons, such as native PDF readers, Ribbon UI interfaces, and camera applications that can actually be implemented with registry key changes, and here are the methods:

Windows 8 Native PDF Reader Startup method

In Hkey_local_machinesoftwaremicrosoftwindowscurrentversionappletspaintcapabilities

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_ROOTCLSID{4F12FF5D-D319-4A79-8380-9CC80384DC08}

Create the key value "AppID" and assign "{9198da45-c7d5-4eff-a726-78fc547dff53}"

Boot camera Apply key value:

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows Ntcurrentversiongre_initialize

Create DWORD named "Remotefontbootcacheflags", set value 0x100f (4111)

Then run Webcam.exe

One more look. Task Manager