Terry Myerson, on the success of Windows 10 under his watch:
Today, we are now approaching 700 million active Windows 10 users, commercial usage is growing 84% year over year, Xbox One is running a Windows 10 core, Surface is leading PC innovation, HoloLens is bringing breakthroughs to computer vision, our universal Microsoft store enables Xbox GamePass, Azure reserved instances, and Office distribution, and the OEM ecosystem is revitalized with profitable growth. Last year, we finished the year with over $8B in operating income from our segment.
I've written a lot about Windows 10 here on my blog. It, along with WSL, Azure, Visual Studio, Xamarin, HoloLens and people like Satya and Panos have me extremely bullish on Microsoft. More than I've been since the 90s.
Myerson spent 21 years at Microsoft. I recommend you read his post as he reflects over two decades.