The following steps outline how to replace the certificate on the Horizon Connection Server, and assume that you have already obtained the replacement certificate using the steps outlined in Requesting a certificate using Microsoft Active Directory Certificate Services. The Horizon Connection Server will be unavailable while the certificate is being replaced, so plan for downtime accordingly:
Using the Services MMC, stop the VMware Horizon View Connection Server service. This will also stop other Horizon-related services.
Open the Local Computer Certificates MMC you created in the Creating a Local Computer Certificates console section.
Right-click on the existing Horizon Connection Server certificate (shown in the following screenshot) and click on Properties to open the Properties window. This certificate is easily identified as it has a Friendly Name of vdm:
In the certificate's Properties window, append the friendly name of the certificate...