Prevent Access to "Settings" tab of "Dispaly Properties"

Prevent users from changing your monitor resolution, color, refresh rate etc..

Follow these steps:
Open Registry editor (start > Run> then type "regedit" (without quotes) and press enter button
this will open registry editor
then follow this path  ...

HKEY_CURRENT_USER\Software\Microsoft\ CurrentVersion\ Policies \System 

if "System" key not found, then right click on "Policies" and select new>key and give the name "System" (with out quotes).

Select "System" and on the right pane right click the mouse button and select new>stringvalue, and give it the name "NoDispSettingsPage" (without quotes)  and doubleclick on it and set its value to "1" (without quotes)

If you need to block the whole display properties then type "NoDispCPL" (without quotes) instead of "NoDispSettingsPage" remaining options are the same.

Note:

Similarly you can try the following

NoDispBackgroundPage - Hide Background tab
NoDispScrSavPage -          Hide Screen Saver tab
NoDispAppearancePage - Hide Appearance tab
NoSecCPL -                        Hide Password Control Panel
NoPwdPage -                       Hide Password Change Page
NoAdminPage -                   Hide Remote Administration Page
NoProfilePage -                   Hide User Profiles Page
NoDevMgrPage -                Hide Device Manager Page
NoConfigPage -                    Hide Hardware Profiles Page
NoFileSysPage -                   Hide File System Button
NoVirtMemPage -                Hide Virtual Memory Button 

Wrong settings in the registry may cause an unpredictable problems to your Windows. So carefully change the appropriate values.