Group policy provides administrators with global update abilities. From the server, click the "Start" button and select "Programs" > "Administrative Tools" > "Active Directory Users and Computers.". Right-click the domain name whose settings you want to change and select "Properties.". Select the "Group Policy" tab.How do you update Group Policy?
To force a Group Policy update on all computers in an Organizational Unit (OU) using GPMC: Right-click the desired OU in GPMC and select Group Policy Update from the menu. Confirm the action in the Force Group Policy Update dialog by clicking Yes.