How to Fix Security Certificate Error Windows Computer

by Dave Wilson ; Updated September 28, 2017

Web servers that support the Secure Sockets Layer protocol present a digital certificate verifying server identity to Web browsers that request connection. Windows Internet Explorer will display a certificate error notification if the digital certificate cannot be verified by a third-party certificate authority or if the date and time of the certificate are not correct. Resolve the error by correcting the Windows system date and time or install the digital certificate if the server is using a “self signed” certificate.

Click on the Windows computer clock located in the notification area at the end of the desktop task bar. Click the “Change Date and Time Settings” item.

Click the “Date and Time” tab. Click the “Change Date and Time” button.

Click the correct date on the calendar that displays or use the left and right arrow keys to adjust the date. Click the time control underneath the clock display and click the hour and minute entries and type in the correct time. Click the “OK” button to save the settings.

Click the “Start” button on the Windows task bar and right-click “Internet Explorer” in the menu that appears. Click “Run as Administrator” in the menu that appears.

Type the address of the website that displays the certificate error into the address bar near the top of the Windows Internet Explorer browser window. Tap the “Enter” key to connect to the website. If the certificate error still appears, proceed to the next step.

Click “Continue to the website (not recommended)” in the message box that appears. Click the “Certificate Error” button.

Click “View Certificates” in the window that appears. Click the “Install Certificate” button. Click “Yes” to confirm that you wish to install the certificate.

Connect to the website through Internet Explorer to verify that the issue is resolved.

About the Author

Dave Wilson has been writing technical articles since 1993, including manuals, instructional "how-to" tips and online publications with various websites. Wilson holds a Bachelor of Arts in psychology from the University of California, Los Angeles and has Microsoft, Cisco, and ISC2 (CISSP) technical certifications. He also has experience with a broad range of computer platforms, embedded systems, network appliances and Linux.

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