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Darn, so not all Win11 users can downgrade. That's so unfortunate to me. Now I'm disappointed. I followed ESD creation instructions to a tea, we even stamp the edition ID, and the regular UpDown_tool could do this. Really, really sad about this. Now all my work = wasted, nobody's gonna want to custom install Win10 and get all the drivers, ahahaha. Back to the drawing board we go. Updown tool somehow did this, but they definitely didn't stamp in Pro or home because in their image I could use it from Win10 LTSC, just as well as I could from Win11 Pro. Hmm.
in reply to Aryan

mastodon - Link to source

Tamas G

@Aryan hmm not perhaps unless you made another .ESD file with a different edition ID stamped in? I don't know actually, that's a really good question. you will need to convert install.ESD from \sources into a .wim again: (example dirs/vars):
dism /Export-Image /SourceImageFile:"%SRC_IMG%" /SourceIndex:1 /DestinationImageFile:"%OUT_WIM%" /Compress:max /CheckIntegrity
That will create you a larger install.wim. Use a tool called, wimlib-imagex at github.com/chris1111/Wimlib-Im… - and write the proper metadata to that .wim:
wimlib-imagex info "%OUT_WIM%" 1 --image-property FLAGS=IoTEnterpriseS
wimlib-imagex info "%OUT_WIM%" 1 --image-property WINDOWS/EDITIONID=IoTEnterpriseS
wimlib-imagex info "%OUT_WIM%" 1 --image-property DISPLAYNAME="Windows 10 IoT Enterprise LTSC 2021"
wimlib-imagex info "%OUT_WIM%" 1 --image-property DISPLAYDESCRIPTION="Windows 10 IoT Enterprise LTSC 2021"
(change to Windows 10 Pro instead of enterprise.)
This might get you a newer install.wim that has the proper flags and lets you upgrade.

GitHub - chris1111/Wimlib-Imagex-Package: wimlib is a C library for creating, modifying, extracting, and mounting files in the Windows Imaging Format (WIM files).

wimlib is a C library for creating, modifying, extracting, and mounting files in the Windows Imaging Format (WIM files). - chris1111/Wimlib-Imagex-Package
GitHub
@Aryan
in reply to Tamas G

mastodon - Link to source

Tamas G

for oscdimg, which you will need to make any new ISO, you need to grab that easy ISO package and 7-zip extract its contents instead of running the .exe (Easy ISO) in there. (or you can use that tool too, but it does not set a volume label. Nevertheless it's good for quick testing.)
oscdimg.exe" -m -o -u2 -udfver102 -lWIN10_IOT_6456 -bootdata:2#p0,eb"D:\iso_path_extracted\boot\etfsboot.com"#pEF,e,b"D:\iso_path_extracted\efi\microsoft\boot\efisys.bin" "D:\iso_path_extracted" "D:\path_to_destination\Win10_IoT_LTSC_6456.iso"
#pef
This entry was edited (3 weeks ago)
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