Think of it as the patching prodigal son.When Microsoft released Win10 version 1903 — indeed, in the later beta test copies of 1903, dating back to early this year — a funny thing happened.
Many testers discovered that Win10 1903 hid its update deferral settings, if you had the temerity to change them.For those who haven&t changed their update deferral settings, Win10 version 1903 Pro invites you to change the settings in a portion of the Windows Update advanced options dialog (to see it, click Start > Settings > Update - Security > Advanced options).