Installing the main certificate as the root certificate

1. Open the Microsoft Management console:
   1. Open a Command Prompt window.
   2. Enter mmc, and then press Enter.
2. Select File > Add/Remove Snap-in.
   The Add or Remove Snap-ins dialog box appears.
3. From the list of available snap-ins, select Certificates.
4. Click Add.
   The Add dialog box appears.
5. Click Computer account.
6. Click Next.
7. Click Local Computer.
8. Click Finish.
9. Click OK.
10. In the left pane of the console, select Certificates (Local Computer).
11. Click the Personal folder.
12. Double-click the main certificate you previously imported and select the Certification Path tab.
13. To install the main certificate as the root certificate, double-click the main certificate.
14. Click Copy to File and do the following:
    1. Deselect Do not export the private key.
    2. Select the default file type.
    3. Select DER encoded binary.
    4. Navigate to the location in which to save the certificate.
    5. Click OK.
15. In the left pane of the console, select Trusted root Certification Authorities.
16. Right-click the Certificates folder and select All Tasks > Import.
    The Certificate Import Wizard appears.
17. Click Next.
18. Select the CER file for the root certificate.
19. Click Next to accept the default options for the remaining wizard pages.