Windows 10 Enterprise -> Windows 11 Pro via Applayer. That is a major version upgrade, and it creates a C:\Windows.old folder. Documentation says not to manually delete this folder, Applayer will take care of it on Finalize. Yet it persists all the way to published image.

Add another version to the layer. But sometimes the folder remains wiht nothing in it. If that happens you can remove it. We need it there to copy all the old scripts and settings.

Yeah, i'm a couple versions beyond the initial upgrade version at this point. Folder is not empty, but the contents appears to be a bunch of empty folders.

Yea just delete it then. Once the script folders are not longer there we dont need it. My guess is something caused it so that we culd not remove it