If you want to show the door to the InBox, Recycle Bin, or Microsoft Network, here’s how:
Run REGEDIT and drill down through the layers to find
HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Explorer\ Desktop\ NameSpace
Click the plus sign (+) next to NameSpace to reveal several numeric fields. Clicking on any one of these will tell you what it is in the right window pane under the Data field. If you decide you really don’t want the Inbox, for example, identify it, highlight its numeric string in the left pane, and press Delete. There you go!