To export a certificate
Do one of the following:
If you are in Logical Certificate Stores view mode, in the console tree, click Certificates.
Certificates - Certificate holder > Logical store > Certificates
If you are in Certificate Purpose view mode, in the console tree, click Purpose.
Certificates - Certificate holder > Purpose
In the details pane, click the certificate you want to export.
On the Action menu, point to All Tasks, and then click Export.
In the Certificate Export Wizard, click No, do not export the private key. (This option will appear only if the private key is marked as exportable and you have access to the private key.)
Provide the following information in the Certificate Export Wizard:
Select the file format you want to use to store the exported certificate: a DER-encoded file, a Base64-encoded file, or a PKCS #7 file.
If you are exporting the certificate to a PKCS #7 file, you also have the option to include all certificates in the certification path
To open Certificates, click Start, click Run, type mmc, and then click OK. On the File menu, click Open, click the console that you want to open, and then click Open. Then, in the console tree, click Certificates.
If you have not already created an MMC console that contains Certificates, see Related Topics.
For the procedure to export a certificate with the private key, see Related Topics.
After the Certificate Export Wizard is finished, the certificate will remain in the certificate store in addition to being in the new file. If you want to remove the certificate from the certificate store, you must delete it.