No longer splitting .wim files with latest Win11 ISO

[carsongoodwin32]

Hello,
Recently downloaded a new Win11 iso from Microsoft and I get an error every time it tries to split the .wim for a FAT32 USB
I tried splitting it manually and got this error:

[ERROR] Splitting of WIM containing solid resources is not supported.
Export it in non-solid format first.
ERROR: Exiting with error code 68:
The requested operation is unsupported.

This is with the ISO downloaded directly from Microsoft

I was able to create an install USB by skipping the .wim, going in to terminal and doing something like

wimexport /Volumes/22631.2861.231204-0538/sources/install.wim all tmp-install.wim --compress=LZX:1

to export the .wim to non solid and then running the normal command to split that tmp-install.wim like

wimlib-imagex split tmp-install.wim /Volumes/WDW_Z7H7HKW/sources/install.swm 3800

Is there a way that this can be auto detected in the code? (catching the error and running the code path above, or detecting non solid .wim in the first place)

Thanks

[TechUnRestricted]

Hi @carsongoodwin32!
Thank you very much for the report, I appreciate these additional details! 👍

I'll try to investigate this issue as soon as I'll get a free time.
Stay tuned for the updates.

[TechUnRestricted]

I've tried the latest Windows 11 image and it works fine for me.
Can you provide a link for an image you've downloaded?

[jsnipper80]

That image also worked for me yesterday - downloaded from Microsoft last week. Specifically "Win11_23H2_English_x64v2.iso"

[TechUnRestricted]

@jsnipper80
Thank you for the information. I glad it worked for you.

@carsongoodwin32
Anyway, if you provide me with an image that has a solid wim, I can fix for this issue.
I'm familiar with the wimlib library source code, so it shouldn't be a difficult task for me.
You can upload your .iso to Google Drive and then send me a link to my email: techunrestricted@gmail.com

[hellomrjones]

Having the same issue. install.wim splitting never stops. Can't use this tool in this state.

[plamber]

Hi @TechUnRestricted,
I noticed this error is popping up when you select Patch Installer Requirements. This does not happen if it is unselected.

br,
Patrick

[Mylab6]

I'm also seeing this issue on the latest windows ISO.

[b23prodtm]

Win11 installer doesn't recognize splitted WIM -> SWM file anymore https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/install-windows-from-a-usb-flash-drive?view=windows-11