Windows – Show computer name on Windows desktop computer icon

windows 7windows xpwindows-registry

I know how to do this in Windows XP, as explained in this answer, but it seems that LocalizedString in HKLM\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D} is locked in Windows 7. Every time I try to edit it, I get the following error, Cannot edit LocalizedString: Error writing the value's new contents

Does anyone know how I can edit this to show the computer name on the desktop’s "Computer" icon?