Sources report that Microsoft is targeting for the Windows 10 RTM to be released in June 2015. Consumer previews have already been pushed and with the development for Windows Phone happening at the same time, Microsoft is really pushing to rush the release of Windows 10.
Traditionally, Microsoft has launched its RTM version of its new operating system in the month of August. However, the company is now trying to move the launch date two months earlier to try and keep up with hardware manufacturers to get ready for the back to school market in the United States. On the other hand, another source reports a different story where they anticipate the RTM being released in fall of 2015 (Q3 2015). Readers can follow the Microsoft Product Roadmap that Redmond Channel Partner created here.
Following the trend of release schedules, Microsoft released the Windows 8 RTM August 1st, 2012 and the consumer preview in early February 2012. With the preview build of Windows 10 released in October 7th 2014 and the consumer preview launched on January 23rd 2015, Microsoft seems to be on track to have the Windows 10 RTM released by June.
These release dates are still iffy and should be taken with a pinch of salt. There has been speculation that the official release date might be unveiled at Microsoft’s Build 2015 conference later this year in April. Seeing that it’s close to June, the conference would be the best event to set a release date to create hype prior to the OS’ release.