https://wccftech.com/microsoft-hits-of-1-billion-windows-10-users/

When it introduced Windows 10 to the world in the summer of 2015, Microsoft had an ambitious goal of hitting 1 billion active devices in 2 years. After an initial surge in the adoption rate, the growth got sluggish, later on picking up its pace as the end of support deadline for Windows 7 inched closer.

It appears that the Windows maker may have finally hit its goal of 1 billion Windows 10 devices. The company had officially announced reaching 900 million devices some 4 months back in September, 2019. Yusuf Mehdi, Corporate Vice President of Modern Life, Search & Devices Group at Microsoft, had announced the milestone, confirming that the company had added more new Windows 10 devices in the last 12 months than ever before.