We sometimes see this problem when deploying Windows 10 at first log in
Under setting we can see that Windows is trying to download and install these features from the internet.
Sometimes these features on demand will not download and install and we probably don;t want all of our machines reaching out to Microsoft.com for them anyway.
If you have deployed en-US Windows 10 and you have the unattend.xml change the locale to something else (in this example en-GB) it will want to download these feature on demand for en-GB.
There is a simple fix for this you can add into the task sequence.
Download the ISO “Windows 10 Features on Demand” for the version of windows 10 you are deploying
Mount the ISO and you see all the feature on demands for the different languages.
Search for the language you need to feature on demand for the language code you need and copy this into a folder.
Create a new install.cmd file with the following command
dism /Image:%1 /add-package /Packagepath:%~dp0
Create a package in ConfigMgr for this content with no program. Then in your deployment task sequence run a command line from this package.
This will resolve the issue of installing these feature on demand step after the machine is built.