Windows 10 now runs on 500 million active devices

At its Build 2017 developer conference today, Microsoft announced that Windows 10 is now on over 500 million devices. It took the company’s latest and greatest operating system about 21 months to hit that milestone.

Windows 10 was installed on over 75 million PCs in its first four weeks, passed 110 million devices after 10 weeks, 200 million in under six months, 270 million after eight months, 300 million after nine months, 350 million after 11 months, and 400 million after 14 months. Microsoft was aiming for 1 billion devices running Windows 10 “in two to three years,” but backpedaled on that goal.