In situations where you don't want to allow users to be able to do this in order to secure your computer.
2.Search for Desktop
3.This should bring you to HKEY_CLASSES_ROOT\Directory
4.Expand this section
5.Under Shell is Find
7.Move down a little in the Registry to Folder
8.Expand this section and remove Explore and Open
Now when you right click on the Start button, nothing should happen.
You can delete only those items that you need.
Note: - On Microsoft keyboards, this also disables the Window-E (for Explorer) and Window-F
(for Find) keys.
See the section on Installation in the RESKIT to see how to do this automatically during an install.