To disable right click on your computer..........

* Open Registry Editor (use 'regedit' command in Run)
* GO THROUGH FOLLOWING PATH....
HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ Explorer
* In right side pane create a new DWORD VALUE (Right click and choose New->DWORD value).
*Give 'NoViewContextMenu' as it's name.
*Set the value to 1.
*Now close the Registry Editor and Restart your system....
Now the right click is disabled in your computer.....Even the keyboard shortcuts also might not work.
To get the right click back....
* Open Registry Editor (use 'regedit' command in Run)
* GO THROUGH FOLLOWING PATH....
HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ Explorer
* In right side pane delete the DWORD value 'NoViewContextMenu'.
*Restart your system.
Now you got back your right click menu.