Windows 10 Pro for Workstations. Power through advanced workloads with help from server-grade data protection and performance. Windows 10 Pro for Workstations is designed for people with advanced data needs such as data scientists, CAD professionals, researchers, media production teams, graphic designers, and animators. We run Windows 10 Pro for Workstations on our latest CAD machines (Precision Tower 5820) because that is the license Dell sold us. The standard version of Windows 10 Pro is currently limited to 2 TB RAM and 2 CPUs at the same time.