Windows 11 25H2 Enterprise multi-language image creation

Hello,

I didn't quite know where to make this thread so I hope this is the right place.

I recently "inherited" the creation of images from my coworker and I want to ask how you guys add languages to your images. The "tutorial" I received from the departed coworker was to add them via the "Settings > Region & Languages menu" and then remove the local user appx packages when doing sysprep (otherwise it fails). This apparently worked for him in previous versions, that is 22, 23 and 24H2...

We use en-US as the base for the image and on top of it we add multiple languages. I already managed to create an image which contains 2 languages (en-US and a 2nd one which I set as system default before sysprep)... The issue is that I included one more language and it got removed after sysprep and the 2nd language is only a "partial" language.

My question is: what's the most reliable way of adding languages to an image in 25H2? From my search I found that .cab is the best way to include them but for that I would need a 25H2 Language Pack ISO which I currently don't have. Are there any workarounds where I could provision these languages as Appx packages etc?

This the go-to guide for adding languages.

W11 24H2/25H2 share the same ISO:
Windows 11 24H2/25H2 Language and Optional Features ISO

If you want an automated solution, try abbodi1406's W10MUI script which can integrate the Language Packs and Monthly LCU's.
Windows NT 10.0 Multilingual Distribution Creator

You could provision LXP's/LIP's (Appx) but there are complaints that they don't provide a complete translation experience compared to LP's. Plus it's a pain to track down the install packages for an offline image, since they're only available from the Store.

garlin said:

W11 24H2/25H2 share the same ISO:
Windows 11 24H2/25H2 Language and Optional Features ISO

If you want an automated solution, try abbodi1406's W10MUI script which can integrate the Language Packs and Monthly LCU's.
Windows NT 10.0 Multilingual Distribution Creator

You could provision LXP's/LIP's (Appx) but there are complaints that they don't provide a complete translation experience compared to LP's. Plus it's a pain to track down the install packages for an offline image, since they're only available from the Store.

Click to expand...

Not work for Windows 10 22H2

We can't help you unless you write a better description of the problem.

garlin said:

try abbodi1406's W10MUI script which can integrate the Language Packs and Monthly LCU's.
Windows NT 10.0 Multilingual Distribution Creator

Click to expand...

I have several times to make Windows NT 10.0 Multilingual Distribution by W10MUI of abbodi1406, there anyway not load my second choised language. Only BCD dual boot menu with redirection of [boot]\sources to setup boot.wim work fine.

I don't understand why changing the BCD boot option is related to the LP integration. The script should create a sources\lang.ini on the ISO, so Windows Setup can see more than one language in the image.

garlin said:

I don't understand why changing the BCD boot option is related to the LP integration. The script should create a sources\lang.ini on the ISO, so Windows Setup can see more than one language in the image.

Click to expand...

The Lang.ini and unattended.xml files do not affect to the setup boot.wim language installation.

Do you want Windows Setup to appear in other languages? That is a separate feature than selecting which language the install image will use. If you want Setup to display in other languages, you need to add the WinPE Optional Components which include separate LP's for boot.wim and Setup.

abbodi's README instructs you to install the ADK (in order to get the OC packages), and edit the script to change WINPE=0.