If you are preloaded and want to instal now -
In the Preload folder in Sources directroy there is a file Install.esd copy this to a new folder.
Download esd decrypter -
https://onedrive.live.com/?cid=e8e5cc039d51e3db&id=E8E5CC039D51E3DB!77869
install 7 zip to extract esd decrypter
Extract all the files and put it in the same folder as install.esd
Right click decrypt install as administrator
choose option 1
This will create the windows 10 iso, right click and mount it then run setup.
I did upgade and keep file and installed fine.
Reddit thread -
https://www.reddit.com/r/Windows10/...w_to_create_a_bootable_iso_from_the/?sort=new