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If you are interested in getting the Win 10 v.1709 Fall Update ISO download, which includes the install.wim file, not the install.esd file the Microsoft webpage update file come with, follow the directions in this video.
Link:
https://www.youtube.com/watch?v=vZK51hjXB2QThis method works correctly and easily, much easier than converting to .wim with other software, but that can be done also.
You will need the ISO with install.wim file in order to mount it for using DISM in the CMD command lines for online repair for windows if it gets corrupted somehow.
Download speed depends on your connection speed, on my 10Mbs connection / 1.2Mbs download speed it took mine about an hour to download as a reference.
I am sure other people will upload just the install.wim to media sharing sites, but for now you can get the full ISO with the above method.
Yes, I know there are other ways using a browser and an extension add-on switching method to trick the webpage for Linux, directions for that way are available online also, so do it that way if you want, I haven't tested that way with this update though, I just used the above method.
If anyone wants to comment on other ways to achieve this, please feel free to post them.
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