Catalin Cimpanu, writing for BleepingComputer: The admission came in a knowledge base article updated last week. Not all users of older Windows versions were forcibly updated, but only those whose machines were running Windows 10 v1703 (Creators Update). This is the version where Microsoft added special controls to the Windows Update setting section that allow users to pause OS updates in case they have driver or other hardware issues with the latest OS version. But according to reports, a Microsoft snafu ignored these settings and forcibly updated some users to Windows 10 v1709 (Fall Creators Update).
of this story at Slashdot.