Thank you for the reply
> #1. You must exit the Classic Start Menu by right clicking the Start button and launch it again from C:\Program Files\Classic Shell\ClassicStartMenu.exe. Or log out of your Windows account and log in again. The context menu *inside the Start Menu* should be disabled after that.
I done that, but it still has the context menu :/ another thing is that I'added the _Default postfix and in the administrator user I set the HKCU flag to 1
( I want that administrator can change the settings), but it doesn't works I still can open context menu but I can't open the settings there is not the entry in the menu..
> #2. Right click the Taskbar and click Properties. From Navigation tab, check "When I sign in or close all apps on a screen, go to the Desktop instead of Start". This is a per-use setting though. There is no way in Windows Server 2012 R2 or Windows 8.1 to boot to the Desktop by default for all users.
doh! weird, while I want to disable the settings entry for all users

maybe is possible to generate a .reg file with this option?