With newer Windows 10 versions, `install.wim` can become larger than
4GiB, which can't be placed in a FAT32 partition anymore. By splitting
it into chunks with `wimsplit` and removing `install.wim`, the larger
images work fine.
This is useful if the install.wim contains multiple Windows versions
(e.g., Home, Pro, ..), because the autounattend file will always select
index 1. With this mechanism, a variant different from the first one can
be automatically selected. imageSelection can be either an index (1-N)
or the image name wiminfo can list all images contained in a given WIM
The default case is index 1, which has the same effect as before, with
the possibility of having a slightly smaller install.wim file because
all unwanted variants are discarded.
Thanks for your speedy feedback! I've made some changes, let me know if there is anything else I should address.
Given that I had some trouble with the driveLetter, it would be best if you could verify the correct functionality internally too. Right now, all our internal CI pipelines (GitLab and Hydra) are successful, but I would love the confirmation from your side before merging.