Besides adding the RDS SSL certificate to the Windows Certificate Store, where else should it be updated?

Updating the RDS SSL certificate in the Server Manager RDS Deployment properties is essential, as this setting controls the Remote Desktop Services deployment configuration. When you update the SSL certificate in the RDS Deployment properties, you ensure that all Remote Desktop Services within that deployment utilize the newly installed SSL certificate for encrypting RDP connections. This step is crucial for maintaining secure communications between the Remote Desktop clients and the server, as well as for compliance with security standards.

While other locations, like the Windows Certificate Store, are critical for establishing secure connections, updating the Server Manager RDS Deployment properties specifically addresses how RDS itself will present the SSL certificate to clients. This ensures that the certificate is actively recognized and utilized by services managed through Server Manager.

The other options may represent parts of the configuration or related settings, but they don't directly impact the central RDS deployment's use of the SSL certificate as configuring its properties in Server Manager does. Therefore, focusing on updating the RDS Deployment properties is a vital step in the overall management of a secure Remote Desktop Services environment.