Rufus has lots of options that could conflict with BIOS settings
Create a bootable USB key by using Diskpart (https://blogs.technet.microsoft.com/danstolts/2012/07/create-bootable-usb-thumb-drive-key-using-diskpart-with-windows-8-media-to-install-windows-8-release-preview-or-other-operating-system/ - as an example, here)
diskpart> list disk> select disk ?> clean> create partition primary> select partition 1>active> format fs=ntfs quick label=”Win8-RP-x64” > exit
Then mount your image iso file and copy (drag/drop works well) the contents to the flash drive
try it
BTW, look at the BIOS. If the systems came preloaded with WIndows 10 then, among other settings, UEFI native boot is the defaul (change it to UEFI with Compatibility mode), and SecureBoot is enabled (change to DIsabled)