SSL certificate not found in the drop down list - IIS 7

Solution 1:

There are two things you need to in order for the certificate to appear in the list for IIS which you may not have done

• Make sure the certificate you are importing includes the private key
• Import the certificate into the machine account and not the user account

Solution 2:

The way I succeeded binding the certificate to the web site:

1/- In the IIS manager.I clicked on the server, then double clicked "Server Certificates", then clicked on Complete certificate Request in the actions panel. I receipt an error message, which is a known issue (because "friendly name" property of the certificate is left blank) that I closed.

2/- In the Certificates snap-in (Start -> Run -> mmc -> Add/Remove Snap-ins -> Certificates -> Add -> Ok -> Computer account -> Local computer -> Finish -> ) - Certificates(local computer) -> right clicked Personal\Certificates folder, there I found the newly imported certificate and replaced in its properties the "friendly name" by some name.