What you need to know about Windows 8 Editions
Windows 8 comes in 4 editions.
— Windows 8. This edition is the most basic one available. It contains the key features that are necessary for general home and smallbusiness use.
— Windows 8 Pro. This edition is designed to support the needs of business and technical professionals, and it supports a broader set of Windows 8 technologies, including encryption, virtualization, computer management, and domain connectivity.
— Windows 8 Enterprise. This edition supports the full set of functionality in Windows 8, and it includes enterprise-level security, mobility, and configuration.
— Windows RT. Windows RT is designed specifically to run apps that are built on the Windows RT platform, and it is available only as a preinstalled operating system on tablets and similar devices that have ARM processors.