In a post focused on Windows 10’s upcoming end-of-support date (October 14), Microsoft EVP Yusuf Mehdi boasts that Windows is the most widely used operating system in the world today, with over one billion monthly active devices globally.

However, it’s been noted that in its 2022 annual report, Microsoft said 1.4 billion devices were running Windows 10 or Windows 11, up from 1.3 billion devices a year earlier.

I think it’s significantly more likely that the number is still around 1.4 billion