https://www.theregister.co.uk/2019/03/27/windows_10_1809_slows/

With the next release of Windows 10 looming, adoption of October's Update of the Damned remains woefully low, according to figures from AdDuplex.

Things appear to have slowed, with the figures for March creeping up by around 5 per cent to 26.4 per cent of machines. The previous update, 1803, still holds a commanding lead, squatting on 66.3 per cent of Windows PCs.