This setting is used to remove the My Documents folder from the Windows desktop.

User Key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\
CLSID\{450D8FBA-AD25-11D0-98A8-0800361B1103}\ShellFolder]
Value Name: Attributes
Data Type: REG_DWORD (DWORD Value)
Value Data: (0xf0500174 = Hidden, 0xf0400174 = Default)