There are billions of Windows users worldwide, but how many people still use Windows 7 in 2020? That number would be at least 100 million... staggering, but it has dropped by 100 million since 2019, where 200+ million were using Windows 7.

The numbers from StatCounter show that Windows 7 has around 17% market share from all Windows operating systems, with Windows 10 far out and beyond that with 76% of people using Windows 10 as of November 2020. Microsoft estimates that there are around 1.5 billion users running Windows worldwide.
Microsoft nixed support for Windows 7 in January 2020, just under 11 years since the operating system launched back in 2009. Windows 7 was a big change in operating system gears for Microsoft, but man Windows 10 has come along way in that time.