Disabling Right Click On The Start ButtonNormally, when you right button click on the Start button

Find.
In situations where you don't want to allow users to be able to do this in order to secure your computer.
1.Open RegEdit
2.Search for Desktop
3.This should bring you to HKEY_CLASSES_ROOT\Directory
4.Expand this section
5.Under Shell is Find
6.Delete 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.

Disabling My Computer

In areas where you are trying to restrict what users can do on the computer, it might be beneficial to disable the ability to click on My Computer and have access to the drives, control panel etc.
To disable this:
1.Open RegEdit
2.Search for 20D04FE0-3AEA-1069-A2D8-08002B30309D
3.This should bring you to the HKEY_CLASSES_ROOT\CLSID section
4.Delete the entire section.
Now when you click on My Computer, nothing will happen.
You might want to export this section to a Registry file before deleting it just in case you want to enable it again. Or you can rename it to 20D0HideMyComputer4FE0-3AEA-1069-A2D8-08002B30309D. You can also hide all the Desktop Icons, see Change/Add restrictions.