Now this is something important for those who are administrators or people who are handling a series of computers in a lab or a network in the office and wants to restrict the users from changing their desktops and screen savers to something really pathetic

There is an option to hide the desktop and the screensaver tab from the properties window

follow the group edit policy of windows :

1 run gpedit.msc

2 open User Configuration > Administrative templates > Control Panel > Display >

3 Here there shall be many options of hiding many things , double click on the ones you want to apply by selecting configured for the options.

and done ! check the properties tab it shall not display the desktop and the screen saver tab now ;)