Removing rlestricted background wallpaper in windows

Method -1:

    1)     Open gpedit.msc

    2)    User configuration\Administrative templates\desktop\desktop

    3)    Open Desktop wallpaper and disable it

    4)    Restart (some time)

Method – 2:

   1)     Open regedit

   2)    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop

   3)    Right-click on the "NoChangingWallpaper" value, in the right-side window panel

   4)    select "Modify" from the shortcut menu.

   5)    Change the value data from "1" to "0." Click "OK."

   6)    Restart (some time)