There will be three Editions for Windows 8. Microsoft announced this news from official Windows blog. There are made major changes to Win8 updated Windows Explorer, New Task Manager and new metro interface. Windows 8 Consumer Preview is Available for Free download and if you didn’t have tested yet, you can download a copy.
For PCs and tablets powered by x86 processors (both 32 and 64 bit), there will be two editions: Windows 8 and Windows 8 Pro.
Windows RT is the newest member of the Windows family – also known as Windows on ARM or WOA.