I download my ISO at ADGUARD: https://uup.rg-adguard.net/index.phpThanks so much for your reply!
I did exactly that but it didn't work. I will write down step-by-step what I did.
1. I downloaded the Windows 11 PRO ISO. Unfortunately, this also forces me to choose a "Select the product language".
2. The final file I downloaded is: Win11_24H2_EnglishInternational_x64.iso
2. Using the GUI-tool I downloaded multiple languages (.CAB formats)
3. I booted NTLite and mounted the ISO I just downloaded. This shows me a list of multiple Windows versions. I opened Windows 11 Pro.
4. I then clicked on "updates", "add", "directory" and then I chose my folder where all the language packs are located.
5. I clicked on "apply" and chose "Save the image" as "WIM" and then clicked "Process".
After a long wait, NTLite said it was finished. I then used Rufus to write the ISO to a bootable USB. Unfortunately, the installer is in English and will and can only install an English (international) version of Windows 11.
Yes, after the installation I an manually download and install a language pack, but I would prefer to be able to choose it at the installation.
Maybe you can tell me where you downloaded your ISO file? Maybe that helps.
Sorry, I wanted to try your method to make a multilingual Windows 11 ISO, but I am at a lost as well on where do you go to integrate the language packs that I need? Like for example I selected:I download my ISO at ADGUARD: https://uup.rg-adguard.net/index.php
After opening the CMD you`ll be asked to integrate things, choose "L" for languagepacks. After that you`ll be asked for numbers out of a list - enter the number and ENTER (repeat for more languages). When all languages are choosen you click ENTER to start the download - will take a time, will produce an ISO with all your languages integrated. Install from this ISO without modifications - you`ll be asked for your prefered language.

There's two versions of 26100.4770 on UUP dump.I downloaded this ISO and get everything working:
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Summary for Windows 11, version 24H2 (26100.4770) amd64, English (United States), Windows Pro
Summary for Windows 11, version 24H2 (26100.4770) amd64, English (United States), Windows Pro on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.uupdump.net
The weird part is, that default apps like notepad, calculator and camera are not installed or available when I am in Windows.
Does anyone know what is wrong?
HW list is just an XML list of 3rd-party drivers installed on each PC. It's not the actual drivers themselves, which you will need a licensed copy of NTLite to import from the host into a loaded image.Next Question. I see an option "import/ export HW list". Does this mean, I can export the HW list of multiple computers, then import them and all drivers are implemented?
nuhi forget to refresh the 24H2 Updates list for July 2025.Last question: Update KB5062553 cannot be downloaded by NTlite, or at least i dont see the option, and it takes ages to use windows update after installation. Can we add it manually or something?
When you export the HW list, it shows all the devices present in the Device Manager from the host PCNext Question. I see an option "import/ export HW list". Does this mean, I can export the HW list of multiple computers, then import them and all drivers are implemented?
This error is usually from when you're missing a required RAID or NVME storage driver, because it was removed or you didn't integrate the right verson. Nobody really needs the actual nvstor.sys, but it's the error message that happens when Windows can't find the right driver.Thanks. I tried that but now the stick won't even boot. It gives me an error on a system file.
File: \windows\System32\drivers\nvstor.sys
Error code: 0xc000000f
When you add Language Packs, NTLite is supposed to create lang.ini in two places in the ISO distribution. If you load an isolated WIM or ESD file, meaning you're editing just the install image directly and not the ISO as a complete project, NTLite can't update lang.ini like it's supposed to do.I used UUP to download the image you told me. The final name is:
26100.4770.250719-0706.GE_RELEASE_SVC_PROD3_CLIENTPRO_OEMRET_X64FRE_EN-US.ISO
I then loaded it in NTLite. All I did was add language packs, then clicked apply after choosing to let it create an ISO file and to save it as an ESD since you previous told me that WIM would not work.
It's been known that some of the images UUP dump provides can have occasional issues. And it's normally resolved by picking the next available build when it's released. Next week is Patch Tuesday, so you can try again with a non-Preview build.Can it be that the .ISO download is not correct? Maybe someone can give me a direct link to the download, please.
I tried downloading the official windows 11 24h2 iso from Microsoft. Then it is working perfect, but again ... I end up with not being able to run any updates.

Yes, download the update.Last question. Yesterday I noticed that Microsoft added a new update for Windows 11 24h2, the cumulative update 2025-08. This takes quite some time to download and install.
How can we get this update into the ISO? Should we wait for a new version to come out on the website? And if so, how do we know when the new version is released?
Or can we add the update with NTlite?
Also, downloading and creating the ISO literally took 12+ hours on my current computer. Is that normal?

Sorry, lost access to my other account (and email).Yes, download the update.
Then integrate it into the image with NTLite from the Updates page (to be integrated before deleting components)
For the time, it depends on the update download speed and the "PC performance"
And maybe if you have an "active" antivirus but even with that, it wouldn't take 12 hours
With an old laptop from 2009, I had about 30 minutes for the process (integrating update, removing +1000 components, etc...)
You must have another problem, I think
Which image (build version) are you using to integrate the latest update?Sorry, lost access to my other account (and email).
Anyways, my ISO was working perfect, until I incorporated the update.
NTLite says it cant use the update.
After that I unzipped it using 7Zip. After that NTLite would incorporate the update, but while installing Windows I get a popup saying the installation failed.
It was working pre-adding the update.
What might be wrong, or what am I doing wrong?
Is there an ETA until when the update will be applicable with NTLite?