In Internet Explorer, click Tools, click Internet Options, and then click the Security tab.If there are specific websites that you trust, you can place individual URLs or entire domains in the Trusted sites zone. This higher security level prevents users from running active content and downloading code to their computers. That same user may not feel as confident about sites on the Internet, so they can assign a higher level of security to the entire Internet zone. For example, since a user may fully trust the sites on their institution's intranet, they would set the Local intranet zone to a low level of security. Users can uses these zones to easily provide the appropriate level of security for the various types of Web content that they are likely to encounter. Internet Explorer includes five predefined zones:
