1. Start Internet Explorer.
2. Click Tools, and then click Internet Options.
3. Click the Security tab.
4. Click Trusted Sites, and then click Sites.
5. Clear the require server verification (https:) for all sites in this zone check box.
6. Make sure that the following URLs are listed in the Web Sites box:
• http://*.windowsupdate.microsoft.com
• http://*.windowsupdate.com
Note: If you want to add a URL to the Web Sites list, and the Add button is unavailable, contact your system administrator.