Microsoft has announced that the phone version of its Windows 10 operating system will not be launched this summer.

Joe Belfiore, Corporate Vice President, Operating Systems Group at Microsoft said that the phone builds have not been as far along as PC builds.

Microsoft Windows

Belfiore also said that from the device view, their main focus is to kick off the Windows 10 launch wave with a great launch on the PC. Users should expect that the other devices like phone, HoloLens, Xbox, Surface Hub will be staggered.

Windows 10 is continuing the same trend of Microsoft's PC release of Windows 8.1where PC release was earlier than the phone release.

In addition, Microsoft said that some features won't be available on Windows 10 at launch.

It is not clear how many features will miss the initial launch window, but Microsoft revealed that launch features start in the summer and increase in the fall. Also, Microsoft's new Edge browser extension support will arrive after the summer.

Microsoft still has not revealed exactly when the company will launch Windows 10.