SSLGenie : MS IIS Root/Intermediate Certificate

Solution

Microsoft IIS Root & Intermediate Certificate installation

You can download the files you will need for this from the support section of the website Root & Intermediate Certificates.
Save these Certificates to the desktop of the webserver machine, then :

Click the Start Button, select Run, type mmc and select OK.



Click File and select Add/Remove Snap in.



Select Add



Select Certificates from the Add Standalone Snap-in box and click Add.



Select Computer Account.

(NOTE : This step is very important. It must be the computer account and no other account) and click Next.



Select Local Computer and select Finish



Close the Add Standalone Snap-in box, click OK in the Add/Remove Snap in.
Return to the MMC.

To install the Root Certificate :



Right click the Trusted Root Certification Authorities, select All Tasks, then select Import.



Click Next.



Locate the Root Certificate and click Next.
When the wizard is completed, click Finish.

To install the Intermediate Certificate/Certificates :



Right click the Intermediate Certification Authorities, select All Tasks, select Import.
Complete the import wizard again, but this time locating the intermediate Certificate when prompted for the Certificate file.

(NOTE : You will need to repeat this step for all the intermediate certificates that are sent to you.)

Ensure that the Root certificate appears under Trusted Root Certification Authorities.
Ensure that the intermediate certificate / certificates appears under Intermediate Certification Authorities.
Once these are installed you may need to restart the server.