Group Policy is a feature in Active Directory that enables administrators to define and enforce policies and settings across multiple computers and users in their network. Group policy settings control various aspects of Windows operating systems and applications, such as security options, software installation, user preferences, and many others. These settings are defined in Group Policy Objects (GPOs) that can be linked to individual sites, domains, or Organizational Units (OUs) in Active Directory for a more granular application of policies. Group Policy is enforced automatically on computers that are members of the domain, and can be applied on a per-user or per-computer basis.