A recent blog post from Microsoft gave us an up-to-date statistic on the number of Windows devices there are the world today, and that number is down by up to 400 million over the last number it gave., Just three years ago, Microsoft claimed that Windows was powering over 1.4 billion devices. Bott concluded that Microsoft must have lost 400 million devices in that time. He reasoned that Microsoft's legal department would have objected to the use of "over 1 billion", if the figure was still around 1.4 billion devices., Recent reports suggest that Microsoft may have experienced a significant decline in its Windows user base over the past three years, potentially losing up to 400 million users since 2022. This change was highlighted by technology journalist Ed Bott in an article published by ZDNet, analyzing statements made by Yusuf Mehdi, Executive Vice President and Head of Consumer Marketing at Microsoft., Given that these documents contain material information and have allegedly been pored over by the tech giant's lawyers, we can safely assume that Windows' user base has been quietly shrinking in the past three years, shedding around 400 million users., Microsoft's data confirms a substantial decline in the Windows user base. According to the company's latest reports, the number of active Windows devices has dropped to 1 billion, down significantly from 1.4 billion in 2022. This 400 million device decrease over three years points to a clear trend of user migration., .