How to create a bootable partition from the directory with "install.wim"

[fermion]

Hello.

First I downloaded the windows iso file "1903" from Microsoft to an external fast SSD with 2 partitions.
I mounted that image in the windows explorer and copied all the files into a new empty directory "custom-win".
Now I started NTLite (latest version) and added that directory as source.

After that I started to configure everything and finished the NTLite process.

The result is a "install.wim" in the directory "custom-win".

How can I please create a bootable partition (I have one free partition on the SSD) from that directory?
Do I overlook an option, that the result of the NTLite creation process could be that bootable partition - without any additional steps?



Thanks for your help.

 

[fermion]

If there's anyone who has an idea how to solve the task, I would be very happy about an answer, because I need to install in the next hours.

 

[nuhi]

Once you copy all ISO files from it to some folder, it's not just the WIM file, keep them all in place and handle that folder as an entity.

When a WIM is isolated, NTLite will show it on the Source page, type "Isolated", that file cannot be made back into an ISO to boot and install from, you need the full ISO folder.
However, isolated WIM can be Applied, search online "dism apply wim image" if you want to go that route.