Remove active directory from this computer without updating forest metadata
An AD-integrated CA places their certificate here during installation.You can import other Root CA certificates here manually.There is no harm leaving the old server as-is for the duration of the project while you finish migrating file shares, DHCP, Remote Access and so forth. You absolutely have already completed your email migration, and removed Exchange from the source server, before you decommission Active Directory and DNS on Small Business Server.Note: the migration of AD/DNS would have been completed prior to this.Certificates can point to this location via the Authority Information Access (AIA) certificate extension.
In particular, you should have already moved the FSMO roles.in the right pane matching the CA server in question and click Delete, confirm with Yes twice: Select the container Certification Authorities. If you are removing information about a Subordinate CA this object is likly your Root CA and there might be other dependencies to this certificate.If you are removing information about a Enterprise Root CA you can delete it.Certificates can point to this location via the CRL Distribution Point (CDP) certificate extension., CN=Public Key Services, CN=Services, CN=Configuration, DC=example, DC=com Used for: Root CA certificates placed here are automatically trusted by all domain members.