The latest data shows that Microsoft is deploying the Fall Creators Update faster than its predecessor. The update is now available on over 20 percent of all Windows 10 PCs.

This data, as always comes from AdDuplex. As you may recall, AdDuplex is the largest cross-promotion network for Windows apps. AdDuplex empowers developers and publishers to promote their apps for free by helping each other. And each month it provides a glimpse at which Windows devices people are actually using.

Here’s what we learn this month.

Fall Creators Update. The Fall Creators Update is now on 20.4 percent of all Windows 10 PCs, so it is outpacing its predecessor, the Creators Update, which was available on 18.1 percent of Windows 10 PCs after the same time frame.

Surface leads the way. This hasn’t always been the case with Windows 10 feature updates, but Microsoft’s Surface lineup is getting the Fall Creators Update at a faster clip than other PC makers: 45.5 percent of Windows 10-based Surface PCs are now running the Fall Creators Update. By comparison, HP is at 19.5 percent, Dell is 20.4 percent, and Lenovo is at 18.2 percent.

HP is still number one. HP is the largest PC maker in the world, so it makes some sense that its PCs are the most popular with Windows 10 users: 25.1 percent of all Windows 10 PCs in the world are made by HP, compared to 16 percent for Dell and 12.8 percent for Lenovo. Microsoft, by comparison is at just 2.7 percent.

Surface Pro 4 is the most popular Surface PC. Once again, Surface Pro 4 is the most-often-seen Surface out in the wild with 39.7 percent usage share among Surface PCs. Surface Pro 3 is number two with 21.7 percent, and Surface 3 (!) is at 10.4 percent.

What about new Surace PCs? The 2017 Surface Pro is predictably surging in popularity and it arrives in position four among Surface PCs with 9.2 percent usage. Surface Laptop, confusingly, is well behind in 8th place (out of 10) with just 2 percent of Surface usage. And Surface Book 2 barely ekes out a 9th place finish with .4 percent of usage. I’m surprised by the Surface Laptop numbers, frankly.