Rumors of the next major Windows release codenamed “Threshold” have been circling for some time now, but Paul Thurott has now revealed further details on the next version of Windows. Threshold will reportedly bring a number of major changes to Windows 8, such as the return of the Start Menu and the beginning of a converged platform encompassing Windows Phone and Windows RT. The company is also working on delivering a single app store across Xbox, Windows Phone and Windows. Thurott mentions that “Threshold” will likely be titled Windows 9 to “distance the company from the Windows 8 debacle” because “Windows 8 is tanking harder than Microsoft is comfortable discussing in public.” It’s true that Windows 8 has struggled to gain rapid adoption; even with the major tweaks in Windows 8.1 (which is free) the company has not seen more than 25 million PCs install the update, according to Thurott.