Although most Web sites pose little security threat to your computer, some sites are designed with malicious intentions. In Internet Explorer, to protect your computer from these sites—and to allow access to additional features for sites you know won’t cause any harm—you can set and customize your own security levels and can add sites to your list of trusted or restricted Web sites.
In Internet Explorer, click Tools, choose Internet Options from the drop-down menu, and click the Security tab of the Internet Options dialog box.
Click the Trusted Sites zone, click the Sites button, and type or paste an address for a Web site you trust and to which you want full access.
Click the Restricted Sites zone, click the Sites button, and type or paste an address for a Web site you believe might be dangerous and from which you want maximum protection.
Click in a zone, and do either of the following:
Use the slider to adjust the level of security. If the slider isn’t visible, click the Default Level button, and then use the slider.
Click Custom Level, and select the options you want in the Security Settings dialog box. Click OK.
Select this check box, if it isn’t already selected, to use Protected mode.
Repeat steps 4 and 5 for each of the zones, and click Apply.
On the Privacy tab, set the privacy level you want to control the types of cookies that are stored and that contain and/or collect information about you.