With the launch of Windows 10, Microsoft announced that it will upgrade all the modern Lumia smartphones with Windows 10, but now, in its blog, the company has said that some of the phones will not support Windows 10.

The company said that Lumia 435, Lumia 735 and Lumia 930 will all get the Windows 10 upgrade when it becomes available.

Microsoft Mobile Devices group corporate vice president of sale Chris Weber said: "We’re making it as easy as possible to get Windows 10. Windows 10 has been designed to run well on today’s Lumia phones."

"Like any upgrade to a new platform, not every phone will upgrade or support all possible Windows 10 features, and certain features and experiences will require more advanced future hardware."

"Our goal is for the majority of the Lumia phones running Windows Phone 8 and 8.1 to join the Windows ecosystem along with an expected hundreds of millions of PCs, tablets and other devices running the next generation of Windows."

With Windows 10 the company is trying to bring one OS to all devices and provide a consistent experience to the users.