The certification authority has been uninstalled from this computer. However, Windows was not able to remove objects related ...

The certification authority has been uninstalled from this computer. However, Windows was not able to remove objects related to this CA from the NTAuthCertificates, Certification Authorities, and Enrollment Services containers in Active Directory. Use the Enterprise PKI snap-in to manually remove CA objects from these containers. For more information, see Enterprise PKI Help.