From the PKI Services Manager console, click Trusted Chain.
Under Search order to use when building path to trust anchor, select Windows certificate store.
Under Trust Anchors, click Add.
Select Windows certificate.
The Windows Certificate Browser is available if you are running on Windows and have selected "Windows certificate store" under Search order to use when building path to trust anchor on the Trusted Chain pane.
Use the Windows Certificate Browser to select a certificate from the list of trusted root certification authorities in the Windows local computer certificate store.
NOTE:PKI Services Manager uses only those certificates that are installed for use by the local computer (not certificates installed for the current user) and are in either the trusted root certification authorities list or the trusted intermediate authorities list. To view and manage the local computer certificates, use the Microsoft Management Console. Add the Certificates Snap-in and configure it to manage certificates for the computer account.