To import a certificate
In the console tree, click the logical store where you want to import the certificate.
Certificates - Certificate holder > Logical store
On the Action menu, point to All Tasks and then click Import to start the Certificate Import Wizard.
Type the file name containing the certificate to be imported. (You can also click Browse and navigate to the file.)
If it is a PKCS #12 file, do the following:
Type the password used to encrypt the private key
(Optional) If you want to be able to use strong private key protection, select the Enable strong private key protection check box.
(Optional) If you want to back up or transport your keys at a later time, select the Mark key as exportable check box.
Do one of the following:
If the certificate should be automatically placed in a certificate store based on the type of certificate, select Automatically select the certificate store based on the type of certificate.
if you want to specify where the certificate is stored, select Place all certificates in the following store, click Browse, and select the certificate store to use.
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.
To perform this procedure, the view mode must be organized by Logical Certificate Stores. See Related Topics.
You can import a certificate into any logical store. In most cases, you will import certificates into the Personal store or the Trusted Root Certification Authorities store, depending on whether the certificate is intended for you or if it is a root CA certificate.
Enabling strong private key protection will ensure that you are prompted for a password every time the private key is used. This is useful if you want to make sure that the private key is not used without your knowledge.
To open the Certificate Import Wizard, you can open Windows Explorer Then, in the cases of DER (.cer), Base-64 (.cer), and PKCS #7 (.p7b) files, right-click the file and click Install Certificate. In the case of a #PKCS #12 (.pfx) file, right-click the file and click Install PFX.
To open Windows Explorer, click Start, point to All Programs, point to Accessories, and then click Windows Explorer.
The file from which you import certificates will remain intact after you have completed importing the certificates. You can use Windows Explorer to delete the file if it is no longer needed.