Make Your Desktop Background Screensaver Unchanged
Make your desktop wallpaper, screen saver to be modified by anyone.
This tip is for Windows 7 will work with Windows Vista and earlier versions as well.
Step 1: Open the Run window.
To open the Run dialog box by pressing the (+ WindowsKey R), or click on the Start Menu and type Run for it
Step 2: Enter gpedit.msc in the Run box and press ENTER.
Step 3: Now the window of the Group Policy editor will open local
Step 4: In the left pane of the Local Group Policy User Configuration Editor click Window -> Models
Step 5: In the right pane of the editor window of the local group policies, double click on Control Panel
Step 6: Now in the right pane to customize the editor window open Local Group Policy -> Background
Step 8: Now you have the option Prevent changing wallpaper window, click Enable and click OK.
Step 9: Now you can not change your image as wallpaper.
Step10: Create a new background varied option is not configured to prevent not change the desktop background window.
Step 11: Do the same for the screen saver, desktop icons, mouse pointers.