On the warning message that appears, click Yes to install the certificate.Click View Certificates, and then click Install Certificate.Click the Certificate Error button to open the information window.Revisit the website on which the certificate was detected as invalid to ensure the problem is solved. Finally, click Start one more time and open Safari when the process finishes.

Click the Start button, and in the following window, click Repair.

To work around this issue, install the Microsoft Windows Small Business Server 2003 (Windows SBS) self-signed certificate on the client computer. Note Users of client computers that do not belong to the organization's Active Directory forest can visit the certification authority Web site to download the certificate. Then, the organization can use this certification authority to generate a certificate for each Web server. Or, the organization can install a Microsoft Enterprise certification authority in the Active Directory forest. To resolve this issue, an organization that hosts the secure Web site can purchase a certificate for each Web server from a third-party provider.

This problem can occur if the client computer's clock is set so that the date/time is later than the expiry date of the web server's SSL certificate. Certificate errors Windows anniversary update