Microsoft released three versions of Windows 8

Microsoft has released three versions of Windows 8 will be sold on the market, it is Windows 8 , Windows 8 Pro and Windows 8 RT . The Windows 8 will be for the computer processor x86/64 and this will be the choice for most end users. Windows 8 Pro oriented business, technology experts to provide features such as encryption, virtualization, management, computer and connection domain, ... Windows Media Center will be provided as a separate package for the Pro. Finally, Windows RT (formerly known as Windows on ARM ) will be installed on the PC and tablet PC's running ARM processors. Windows will also be integrated RT versions optimized for the touch screen of Word , Excel , PowerPoint , and OneNote .

In Windows 8, users can quickly switch the language without rebooting, features previously only available on Windows Enterprise / Ultimate. In China and some emerging markets, Microsoft has built the local language. The RT will have a Windows environment to run new applications ( Windows Runtime, or WinRT ) that it will introduce in September, opens a new generation of applications "based on cloud computing, touch screens and the connected to the web. " For enterprise customers, Microsoft is taking them a special Windows 8 optimized for Software Assurance contract (a service for agencies, organizations, under which Microsoft will make maintenance, technical support for its software in the long run). Windows 8 Enterprise will have all the features of Windows 8 Pro, plus the specialized functions for managing computers in a company (enhanced security, mobility, management / distribution system resources , ...) The ability to upgrade Windows 7 Starter, Home Basic, Home Premium, Professional, Ultimate will be raised to Windows 8 and Windows 8 Pro. The Windows 8 RT does not allow upgrade from any version of Windows 7, and of course can not be installed on the computer processor x86/64. You can view more details about the features of each version in the source link.