To disable desktop items and right click option
In registry edit, follow this path:
HKEY_CURRENT_USER\software\microsoft\windowsNT\currentversion\policies\explorer
create a new DWORD value in the right pane by right clicking.
NoDesktop and set the value 1.
Similarly some other option you can create;
NoFind (It will disappear search option)
NoRun
ClearRecentDocsOnExit (It will delete your recent documents from the list.)