When you are trying to change the “Display Properties" on Desktop sometimes you can view only "Themes" or few “tabs”. The other tabs like "Desktop", "Screen saver", "appearance" and "Settings are may missing. What could be the problem?The most likely cause of this is malware utilizing Group Policy Objects which enforces policies for system settings and/or user account(s) settings. First you have to ensure there is no malware in your PC.Now you have to manually do the registry value change or by running registry fix from Kellys-Korner.Before making any changes to the Windows XP Registry, please backup your Windows XP RegistryStart> Run> type ...