The latest AdDuplex report shows that Windows 11 made significant usage share gains in the last month.

“Windows 11 has almost doubled its modern Windows PC usage share since the last time we checked [in] November 2021,” the report notes, adding that its numbers are based on a survey of about 60,000 PCs running Windows 10 and 11.

In November, Windows 11 accounted for almost 9 percent of supported PCs out in the world; Windows 10 version 21H1 was at 36.3 percent and Windows 10 version 20H2 was close behind at 31.8 percent.

Now, Windows accounts for 16.1 percent of all supported PCs out in the world, up 7.5 percentage points. And while Windows 10 versions 21H1 and 20H2 are still the two most-used Windows versions, their respective shares have dropped, to 28.6 percent and 26.3 percent.

But here’s an interesting statistic: Windows 10 version 21H2, which was released shortly after Windows 11, accounts for 12.1 percent of PCs out in the world. “While Windows 11 has almost doubled its share,” AdDuplex adds, “Windows 10 21H2 more than tripled in the same period.”

These numbers don’t directly correlate, but what the heck: I’ll also point out that, using Microsoft’s latest 1.4 billion figure for overall Windows 10 and 11 PCs, we could roughly estimate that there are now 1.175 billion Windows 10 PCs/users (again, not the same thing, I know) and 225.4 million Windows 11 PCs/users out in the world. Sort of.