Myerson said before launch that was to 1 billion devices running Windows 10 in a few years.
He did not give a breakdown of the type of Windows 10 was used on devices. Microsoft still dominates the market for personal computer software, but its share of smart phones – where many people are now most of their computing – is tiny.
Windows 10, released last July, was offered as a free upgrade for owners of newer Windows systems.
The IDC Technology research firm expects smartphones running Windows will represent in this year, 1.6 percent of the global market as compared to 83 percent running Google’s Android system and 15 percent in the course of iOS implementation of Apple Inc.