Windows 10 battled Windows 7 last month for the title of Most Popular Windows, but again failed to land enough blows to put its opponent on the canvas.

According to U.S. analytics company Net Applications, Windows 10 slipped one-tenth of a percentage point in user share during November, falling back to 38.1% of all PCs and 43.8% of those running Windows. (The second number is larger than the first because Windows does not power all personal computers; in November, Windows ran 87% of the world's systems. Most of the remainder ran macOS, Linux or Chrome OS.)

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Meanwhile, Windows 7 lost five-tenths of a percentage point last month, just a third as much as in October. Windows 7 closed November on 38.9% of all personal computers and on 44.7% of all Windows PCs.

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