Cubase Elements 9 Trial HD Free Space


I have 30 Go HD free, and in the “System Requirement” page, it’s written that I only need 12 GB HD free for the Cubase Elements 9 Trial. However, when I downloaded the Cubase Elements 9 Trial, it saturated my HD space, and I couldn’t achieve the installation.

Does anyone know how much HD free space I really need for the installation? And why is it more than 12 Go?