Windows 10’s user share jumped in January by its second-largest one-month increase since its launch, data from analytics vendor Net Applications showed today.

At the mid-point of its first year, Windows 10 powered approximately 196 million systems, according to Computerworld‘s calculations using Net Applications’ numbers, close to Microsoft’s current claim of 200 million machines, made in early January.

The jump in user share — an estimate of the portion of all personal computers worldwide that ran the OS — was an impressive 1.9 percentage points, second only to the 4.8-point gain that Windows 10 recorded in August, the first full month of availability. January’s increase was almost double that of December’s.

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