Add or remove Common Desktop Items

Here are the registry locations and Guids for hiding common Microsoft Windows Desktop Items:
All the Entries are Dwords a value of 1 hides the item a value of 0 showes it.

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\
HideDesktopIcons\ClassicStartMenu]

Computer = {20D04FE0-3AEA-1069-A2D8-08002B30309D}
Personal folder = {59031a47-3f72-44a7-89c5-5595fe6b30ee}
Control Panel = {5399E694-6CE5-4D6C-8FCE-1D8870FDCBA0}
NetWork = {F02C1A0D-BE21-4350-88B0-7367FC96EF3C}
Recycle Bin = {645FF040-5081-101B-9F08-00AA002F954E}
Libraries = {031E4825-7B94-4dc3-B131-E946B44C8DD5}

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\
HideDesktopIcons\NewStartPanel]

Computer = {20D04FE0-3AEA-1069-A2D8-08002B30309D}
Personal folder = {59031a47-3f72-44a7-89c5-5595fe6b30ee}
Control Panel = {5399E694-6CE5-4D6C-8FCE-1D8870FDCBA0}
NetWork = {F02C1A0D-BE21-4350-88B0-7367FC96EF3C}
Recycle Bin = {645FF040-5081-101B-9F08-00AA002F954E}
Libraries = {031E4825-7B94-4dc3-B131-E946B44C8DD5}

While there are no builtin GPO's to control these folders you can use GroupPolicy Preferences to minipulate.

Thanks to Henny Louwers over at http://hlouwers.wordpress.com/2010/07/24/show-hide-desktop-items-windows-2008-r2-windows-7-by-means-of-registry-and-microsoft-group-policy-preferences/ for the CLSID and Registry paths.

You can find a full list of CLSID's for windows 7 here http://www.sevenforums.com/tutorials/110919-clsid-key-list-windows-7-a.html