The first step to enabling NPS validation is to create and configure a System Health Validator (SHV). The validator is where the settings are stored and what will be enforced on the client, such as if a firewall is needed, should antispyware software be installed, and so on. To create the SHV for the example we are outlining, follow these steps:
1. Hover the mouse at the lower right and choose Start and select Network Policy Server. From the left pane, select NPS (Local). Then in the right pane, select NAP from the drop-down list and choose the Configure NAP option, as shown in Figure 15.2.