How do I allow only one website in my Internet Explorer browser and block all?

To configure the sites that you want to restrict for the computer, click on the Approved Sites tab, which is shown in Figure 3. To add a site, type it into the “Allow this website:” text box, then click the Never button. When you have configured all of the sites that you want to restrict, click the Apply button.

Solution: Via Internet Options Step 4: In the LAN Settings window, under Proxy server, check the box next to Use a proxy server for your LAN. Step 5: Now, in the Address field below add the proxy – 127.0. 0.1 and set the Port field to 80. Then, click on the Advance button next to it.

Enable Parental Controls to prevent the use of other Web browsers on the computer. Click "Start," type "parental" and then press "Enter." Select a user, click "Allow and Block Specific Programs" and then follow the onscreen prompts to block other browsers.