Windows 11 market share creeps upwards as cost of staying on Windows 10 set to double

Windows 11 adoption is continuing to rise as the economics of staying on Windows 10 worsen: the first year of Extended Security Updates is ending, and commercial ESU pricing doubles in year two, turning legacy support into a growing security tax. For CIOs and IT leaders, this increases pressure to accelerate endpoint refresh plans, prioritize hard-to-replace devices, and reassess whether paying to extend Windows 10 support is cheaper than moving users and applications to Windows 11.