Use the Renew an Existing Certificate Wizard to renew a certificate that is about to expire.
You cannot renew a certificate that has already expired. If you try to renew a certificate that has expired, the certification authority (CA) will reject the request, and you will see an error message similar to "Error Verifying Request Signature or Signing Certificate. A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file." This message will also be displayed in the Failed Requests node of the issuing CA. If your certificate has already expired, you must request a new certificate instead of renewing the existing certificate.
UI Element List
Renew an existing certificate
Select this option to renew an existing certificate from an internal certification authority (CA) on your domain.
Create a renewal certificate request
Select this option to package your renewal information for later submission to a CA.
Complete certificate renewal request
Select this option to complete the certificate renewal request with the certificate you received from a CA.