Microsoft is making some big branding changes. The long-running and highly popular phone brand, Nokia, will no longer be associated with future devices after Microsoft drops the name completely off its Lumia smartphones later this year. Another change in course is the rebranding of Windows Phone, which will simply be called Windows. The transition came to light after Microsoft's confidential internal documents obtained by GeekOnGadgets were leaked online, Wednesday.

The new branding is already set in motion by the software giant with recent Lumia commercials that uses just Windows at the end of the video instead of Windows Phone. Another confirmation of the ongoing transition is the HTC's new One M8 for Windows, which conveniently shrugs off any mention of "Phone."

The new renaming process is much in line with Microsoft's boss Satya Nadella's "One Windows" strategy, which was announced during July's earning call. With this, Nadella hopes to build a "single converged operating system for screens of all sizes."

The Verge also confirmed the authenticity of the leaked documents. "As part of our phased transition, we will drop the manufacturer name [Nokia] from product references during the Holiday campaign," one of the slides read.

According to the report, the Redmond-based software company is planning to ditch the Windows Phone logo from its promotions and commercials, a glimpse of which is already seen in the Lumia 930. In fact, some of the commercials like the Lumia 530, Lumia 730 and Lumia 830 have no mention of Windows Phone at all.

The unification of the names does not mean any notable changes in the company's operations of its smartphone business or the mobile OS division. It is evident that the next OS update will simply be called Windows 9 for mobile and desktop.