Going from 1903 to 1909 is only a ~1mb enablement package [1]. It essentially changes the version number in the registry and enables several existing features.

Going from 1903 to 1909 is only a ~1mb enablement package [1]. It essentially changes the version number in the registry and enables several existing features. [1] https://support.microsoft.com/en-us/help/4517245/feature-update-via-windows-10-version-1909-enablement-package https://support.microsoft.com/en-us/help/4517245/feature-upd...