The surge is on: Windows 10 version 1903 now accounts for fully one-third of all Windows 10 usage worldwide, according to AdDuplex.

“The usage share of Windows 10 [version] 1903 has tripled since last month,” the latest AdDuplex report explains. “It is now on 33 percent of more than 100,000 PCs surveyed worldwide. We are in a historically unique situation where three versions of Windows 10 have almost equal usage shares. On the other hand, if upgrades continue at this pace, we will be back to the usual spread with two latest versions covering the vast majority of the PCs in use by this time next month.”

Looking at the data, Windows 10 version 1803 barely squeaks out a first-place finish, with 33.1 percent of usage, compared to 33 percent of version 1803 and 28.7 percent for version 1809. Very interesting.

As you may recall, usage growth of Windows 10 version 1903 had been slow to date. It accounted for just 11 percent usage last month, the first time it had hit double-digit share. Previous months saw 6.3 percent and 1.4 percent usage, respectively.

The big loser in version 1903’s rise, of course, is the previous champion, Windows 10 version 1803, which has fallen from 61.1 percent usage in May to 58 percent in June and 53.7 percent in July. So it looks like Windows 10 version 1903 has finally turned the corner. And just in time, too, since version 19H2, now called 1909, is waiting in the wings.