You must delete the previous certificate for
the agent before installing the new certificate. If you do not delete
the previous certificate, the Cloud Identity Engine may reference
the previous certificate instead of the new certificate.
On the agent host, open Microsoft Management Control
(MMC) by selecting StartRun,
then entering MMC.
Select FileAdd/Remove
Snap-In.
Select CertificatesAdd.
Select Computer AccountNext.
Select Local ComputerFinish.
Click OK, then navigate to Console RootCertificates (Local
Computer)PersonalCertificates.
Select the previous certificate from the list.
Right-click the certificate, then Delete and
click Yes to confirm the deletion.