A Group Policy Object (GPO) provides a way to manage settings for computers and users in an Active Directory environment.
A Group Policy Object provides a way to manage settings for both computers and users. A GPO can be stored locally on a PC, but it is designed for administration of specified sets of computers and users in the active-directory environment.
Policy settings can be used to determine security constraints, system and application behaviors, startup and shutdown procedures and much else in the Microsoft Windows network and operating system.