Windows 10 is wonderful but controversial, and 2016 was in many ways a landmark year for Microsoft's last great desktop platform. This story is still being told, and the ending is unclear. But Windows 10 dominated my mind-share and coverage this past year. And any discussion of this product must by nature cover both the highs and the lows. There were many of both.
To be fair to Microsoft as well as the people who build this product, I will state up front that I am overwhelmingly and unhesitatingly a fan and enthusiastic user of Windows 10. I believe in the vision for this product, and that it meets the needs of a diverse user base across a wide variety of PC and device form factors.