You have a single Active Directory directory service domain. Users each have a primary client computer but also frequently use shared client computers. You use a Group Policy object (GPO) to publish an application to the users in the marketing department. The users can remove the application when they no longer need it. Some users report that when they log on to a shared client computer on which the application has been removed, the application is no longer available to install. You need to ensure that the application is available for all users on each client computer, even if another user removes the application. What should you do?