A Windows 95, 98, and NT database of configuration settings, where information is stored concerning attached hardware, selected system options, memory setup, and available applications. It consists of the System.dat and User.dat files. When application programs are installed or uninstalled, Windows updates the registry automatically. Registry information can be kept on a server so that system policies can be managed centrally. You can access the registry through Control Panel in My Computer or by using the Properties menu option on the File menu. Remember, editing the registry is extremely dangerous, so take care when doing so.