All software that you install on your PC adds elements to the start menu, in the option Add / Remove program list of the Configuration panel. By using the Configuration panel, anyone who has access to your computer can display all the programs installed on your PC and can uninstall them. By hiding these programs you can avoid their suppression from t Add / Remove program list. You can also mask temporarily the elements of the Start menu without deleting them. Finally, you can delete the programs which cannot be correctly uninstalled, to accelerate the display of the list of the programs in Add/ Removeof program list.