Statcounter Global Stats releases monthly data on operating system usage, highlighting a decline in Windows 10 and an increase in Windows 11. Forbes reported that approximately 40 million users upgraded to Windows 11 in January, but the reliability of this data is questioned. Statcounter's reports are based on pageviews, not actual market share, and may reflect statistical noise rather than true user behavior changes. Founded in 1999, Statcounter's user base has decreased from 3 million in 2009 to 1.5 million in 2022, and its data is limited as it does not include traffic from major sites like Google or Facebook. The company's monthly pageview count has dropped from over 17 billion to around 5 billion in recent years. While trends suggest a decline in Windows 10 traffic and an increase in Windows 11 usage, these figures may not accurately represent the overall market share of Windows operating systems.