by boco » 07.08.2018, 17:23
Mistake yes, stupid no.
WOU installs most updates as CAB using the MS DISM tool. For a reason only MS knows, those do not appear in WU History. But they do appear in "Installed updates"!
Microsoft update catalog: http://catalog.update.microsoft.com/v7/site/
Windows Install media download: https://support.microsoft.com/en-us/help/15088/windows-create-installation-media