I downloaded the installer and 3 other language packs and pu t them in a folder together. I made sure that the English installer was first in alphabetical order. The command I ran to do the install in a bat file is:
for /R %~dp0 %%G in (*.exe) DO START /MIN /WAIT “%%G” /q /norestart
I set this up exactly. The download completes successfully, however; In Software center it starts to install then stops and says “Past Due will be retired” I click on retry and it installs. Not sure what the deal is. I am making it required.