Microsoft is now planning to release the preview build of ‘Windows 9’ at special press event on 30th September, according to the sources familiar with plans of Microsoft. This date could still change, but 30th September lines up very neatly with previous leaks that suggested a late-September or an early-October release date for the technology preview of Windows 9. It is still unclear that how many of Window’s hotly anticipated features will be actually make it into the 30th September release, but hopefully we will at least see a resurrected Start menu & Metro apps running on to the Desktop. We would not be surprised if you have to wait alittle more for consumer preview of the Windows 9.
Also See: Windows 8.2 features and release date
So, wait till September 30 for the experience of Windows 9.