Existing tablets will get full desktop functionality, but new devices under 8-inches will be more like Windows Phone.
The operating system that built Microsoft will serve as a conduit for the cloud services that now earn far more for the company.
Heavily discounted Windows licenses led to a revenue shortfall of 25 percent year over year, highlighting the importance of successful launch of Windows 10 later this year.
Microsoft's new browser isn't available just yet, but Windows Insiders can already reap some of the benefits through Internet Explorer.
Microsoft wants to hear what you have to say about Windows 10, and this is where you can do it.
We go hands on with Cortana in Build 9926 of Windows 10, and find the digital assistant is disappointing compared to what's installed in Windows Phone.
Microsoft has published Build 9926, the version of Windows 10 the company showed off at its event this week.
Contrary to an earlier statement, Microsoft now says some Lumia Windows Phone 8 devices will be left behind.
Microsoft releases its first screenshots and planned ship dates for Office for Windows 10, its touch apps for mobile Windows 10 devices. Microsoft also announced Office 2016 for mouse-and-keyboard PC users.
Coming up on World Tech Update this week Windows 10 debuts as a free upgrade and HoloLens impresses, DARPA's updated Atlas robot still isn't perfect and a solar powered plane will fly around the globe.
The new Xbox app will eventually allow you to stream Xbox games to PCs and tablets. But it already offers an exquisite amount of details, like how many hours you've wasted on Destiny.