https://www.techradar.com/news/windows-10-may-2019-update-is-rolling-out-very-slowly-to-avoid-any-major-fails

Windows 10’s latest update is rolling out at a very slow and measured pace, with Microsoft evidently being careful about monitoring the progress of the May 2019 Update, according to some fresh figures.

The latest monthly stats for May from AdDuplex, which monitors Windows 10 adoption on machines that run its ads (on apps installed from the Microsoft Store), found that in the first week of the May 2019 Update’s release, the upgrade made its way onto only 1.4% of PCs.