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Solution ID : SO15687

Last Modified : 04/26/2019

Intermediate Certificate Authority (CA) Installation Instructions for Microsoft IIS and Exchange


Step 1 - Download the GeoTrust Intermediate CA file for your SSL product type:

Note: The correct GeoTrust Intermediate CA Certificate must be installed in order for the SSL certificate to work and be fully supported in all web browsers.

Download the GeoTrust Intermediate CA Certificate.

Step 2 - Create a Certificate Snap-in:

  1. From the Web Server, click Start > Run
  2. Type in MMC and press Enter
  3. Click OK
  4. From the Microsoft Management Console (MMC) menu bar, click File (in IIS 6, IIS 7 & IIS 8) or Console (in IIS 5) > Add/Remove Snap-in
  5. Click Add
  6. From the list of snap-ins, Select Certificates
  7. Click Add
  8. Select Computer Account
  9. Click Next
  10. Select Local Computer (the computer this console is running on)
  11. Click Finish
  12. In the snap-in list window, click Close
  13. In the Add/Remove Snap-in Window, click OK


Step 3 - Install the GeoTrust Intermediate CA:

  1. From the left pane, expand the 'Intermediate Certification Authorities' folder
  2. Right-Click on the 'Certificates' folder
  3. Select All Tasks > Import
  4. In the Certificate Import Wizard, click Next
  5. Click Browse and navigate to the Intermediate CA Certificate File
  6. Click Next
  7. Select 'Place all certificates in the following store'
  8. If necessary, browse and select 'Intermediate Certification Authorities'
  9. Click OK
  10. Click Next
  11. Click Finish
  12. Close the MMC

Note: A restart of IIS is recommended. In some cases a reboot of the server may be necessary in order for the changes to take affect. For IIS 7/7.5, a reboot or re-create of the HTTPS bindings is required in order for the changes to fully propagate. Steps for setting up the HTTPS binding can be found here.

Verify the installation of the GeoTrust certificate chain using our SSL Checker