Explanation/Reference:
Example:
To enforce a Group Policy object link
1. In the Group Policy Management Console (GPMC) console tree, double-click the forest containing the domain, site, or organizational unit (OU) containing the link you want to enforce, and then do one of the following:
To enforce a GPO link at the domain level, double-click Domains , and then double-click the domain

containing the GPO link.
To enforce a GPO link at the OU level, double-click Domains , double-click the domain containing the

OU, and then double-click the OU containing the GPO link.
To enforce a GPO link at the site level, double-click Sites , and double-click the site containing the

GPO link.
2. Right-click the GPO link, and then click Enforced to enable or disable enforcing the link. A check mark next to Enforced indicates that the link is enforced.