Windows Answer File Generator
http://www.windowsafg.com/win7x86_x64.html

Silent Installation of Software on Windows
https://www.manageengine.co.uk/products/desktop-central/software-installation/windows-software.html

Make a bootable Windows USB from Linux
https://www.onetransistor.eu/2014/09/make-bootable-windows-usb-from-ubuntu.html
https://superuser.com/questions/1214227/how-can-i-create-a-windows-bootable-usb-stick-using-ubuntu

Dism++, probably the most powerful utility
https://www.chuyu.me/en/index.html

Windows 7: Slipstreaming Windows 7 with all the critical / important updates.
https://www.sevenforums.com/installation-setup/412522-slipstreaming-windows-7-all-critical-important-updates.html

Windows 7 Autounattend Example
https://www.itsupportguides.com/knowledge-base/windows-7/windows-7-autounattend-example/