How To Convert A CER Certificate To PFX Without The Private Key

1. Import the certificate to its personal certificate store

   Right-click on the certificate file.
   Select install certificate.

2. Select Local Computer radio button

   

3. Select the default automatic store to import the certificate

   

4. Import the certificate

   Click Finish button to complete the import process.

5. Import process complets.

   Wait for a while until you see a successful message.
   

6. Open MMC in Windows server

   Hit Win + R to open the Run utility
   Type mmc in the box.
   Press Ok.
   

7. Add Certificate Snap-in

   Go to File > Add/Remove Snap-in..

8. Select Certificates and press Add

   

9. Select the User or Computer Certificate snap-in

   Select the snap-in which you want to create the certificate. For demonstration we are choosing Compute account.
   Click Next.
   

10. Select Local Computer

    Select local computer as you are going to create CSR on the same computer.
    Click Finish.

11. Select Certificate (Local Computer) and click Ok

    

12. Load MMC

    You will see the certificate in the personal store.

13. Export the Certificate
    Right Click on the Certificate
    Select All Tasks -> Export
    

    

14. Certificate Export Wizard

    Click Next in the Certificate Export Wizard

15. Export the Private Key

    Select the radio button ‘yes, export the private key’
    Click Next
    

16. Export pfx certificate

    Select PFX radio button.
    Three options are available to select during the export. Select the one which you need.
    Click Next

17. Select Security options to export the pfx certificate.

    (Optional) Select the Group or user name of your choice if you want to set the permissions to manage the certificate.
    Select a password and enter the password to encrypt the certificate.
    Note: It is mandated to select the password. It is recommended to secure the private key.

18. Provide the location to save the pfx Certificate.

    Browse the location where you want to save the pfx certificate
    Click Next

19. Finish to export the pfx certificate