Did KB5040435 install on your machine? I have a fresh install LTSC IoT., KB5040435 won't install with error 0x80070306. Same with offline package. Nothing installed yet no the system, except some Massgrave activator and whatever Windows Update downloaded for me regarding system drivers.
Thank you both for your replies. There seems to be something weird with this update, at least with my hardware combination. My desktop really had some issues, but my Surface Go that had 26100.863 too and installed KB5040435 fine. Nothing that really indicated a clear issue using the Get-WindowsUpdateLogs cmdlet. Installed LTSC three times today: #1: Installed without key, let Massgravel do some magic, install all available updates. No success, KB5040435 failed with 0x80070306. #2: Installed without key, install all available updates. No success, KB5040435 failed with 0x800706be and BSOD afterwards (page fault thingy, the memory corruption BSOD). #3: Installed without key, installed KB5040435 first. Success and installed all other Windows and driver updates afterwards. Third Time's a Charm. Will run memtest just to be sure, but I'm almost certain nothing is wrong my hardware. Edit: scrap that, #3 was also botched despite everything installed fine. Memory access violations across multiple apps, e.g. in powershell with auto-complete (tab). Memtest passed without any problems. #4: Reimaged my USB stick, download both offline installers for KB5039239 (june) and KB5040435 (july). Installed june first and july after installing and before going online. Not sure it was my USB stick or KB5040435 without KB5039239 that caused my issues. I did use the same stick to install LTSC on a different system a week earlier.
IoT Enterprise LTSC 2024 = Got all the way to rebooting and running the final setup stuff and was at the booting back up stage when "Windows 11 Installation Failed". Well, I guess that saves me some time. Don't bother trying to help me with it, don't care. I was just going to take a look at it and see if I might be able to tolerate it at all in the LTSC flavor (unlike original 11 version /spit). Probably still something to do with my using legacy BIOS (CSM) mode, MBR disks, no TPM, Secure Boot, etc. etc.
installed in vm, running smoothly and all apps open instantly - no problems so far disabled/removed: Edge, Defender, Telemetry, SmartScreen, updates, useless scheduled tasks and services, searchui, indexer, replaced host file with custom blocks. custom made AutoHotkey quick launch bar
In brief you could have said "use the Win11 24H2 Italian eval ISO files to get Italian only ISO setup" and that looks like a good idea. But I found those commands in W10MUI script that can be used after removing unwanted language to get a very close result: Code: dism /Image:<mounted WIM> /Set-AllIntl:it-IT dism /Image:<mounted WIM> /Set-SKUIntlDefaults:it-IT dism /Image:<mounted WIM> /Gen-LangINI /Distribution:<DVD folder> dism /Image:<mounted WIM> /Set-SetupUILang:it-IT /Distribution:<DVD folder> (change it-IT with your default settings) and afterward delete the unwanted LP folders from the ISO (in my case I don't need en-US language, so I deleted all en-US folders in the ISO sources folder) And I found a little problem with your procedure: doing like you said you will overwrite the ISO files updated by W10UI (contained in W10MUI Updates folder) with vanilla files from eval ISO, so you should better do: - delete the Updates folder in W10MUI to install only the LPs - then doing your procedure* - and at last running W10UI to update everything *at this point you should get a vanilla (non-updated) ISO in your language, where you can apply directly any future updates, without touching the languages settings anymore.
26100.1.240331-1435.ge_release_CLIENT_ENTERPRISES_OEM_x64FRE_en-us.iso Windows sandbox doesnt install on this version. After restart it says: "Something didn't go as planned. Going back to your previous version. Please keep your device on." I tried windows ltsc 2021 and windows 11 pro with same bios settings and it installs on them.
There's a bug report on the feedback hub about that. Unfortunately, I'm running LTSC without the feedback hub so I cant link it (the irony). It misses some files in C:\Windows\Servicing\Packages\ if I remember correctly. It's not a you bug, it's a MS bug. The actual true error is in your cbs.log.
It also didn't run on 2021 LTSC till a certain LCU was released. Officially only OEM's have access to these ISOs and LTSC is not part of the insider testing, so wondering how an official bug report in feedback hub could be taken in consideration...
But this isnt a specific scenario bug. It could be detected by just runing it once before publishing the iso.
Well, by simply stating that Windows Sandbox is only supported for Pro, Enterprise, Pro Education/SE and Education. And that's exactly why the installation fails, it expects some files related to the Pro version. They'll probably make it work eventually, just like @Enthousiast mentioned. I do remember with W10 LTSC that the IoT version did not support Sandbox, but the normal LTSC did. For IoT, you could work around the issue to get it working. Not sure where @Enthousiast timeline comes into play regarding this. I just moved on to a VM for tasks where I needed a sandbox.