@blema2213 It looks like I need to create an updated post. The intent was for you to follow this process https://forums.fogproject.org/post/103323 until you get to step 18 then jump to the first link I posted to you.
The idea/problem is just as I mentioned, Win10 expects to see local or network based media not in RAM media. Also the issue with the above link is that you can not use the memdisk program with uefi. So what I’m recommending is that you copy the win10 media to a windows server and share it out as read only. Then build a WinPE image that will mount the network share you created and run the winsetup program. Windows will allow you to install over a CIFS share.
So the steps are to
Copy the windows media to a windows based server (or SAMBA) share. Create a WinPE boot media Launch that WinPE image from the fog server over pxe Install Windows from the share created in step 1