*Component*: coreutils.x86_64 8.32-4.fc32.; *OS*: Linux Fedora Source of file: https://www.microsoft.com/en-us/software-download/windows10ISO
Disc image file - checked against its SHA-256 checksum was correct - written successfully with that command: # dd if=Win10_2004_Finnish_x64.iso of=/dev/sdc bs=4M oflag=direct status=progress && sync Once written, the partition is as follows: $ mount | fgrep /run/media/$USER /dev/sdb on /run/media/yk/CCCOMA_X64FRE_FI-FI_DV9 type udf (ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,uhelper=udisks2) While the USB device was booted in BIOS, the following message was produced "*No boot sector on USB device*"". Using *Gparted*, while the device's partition was unmounted, the flags could not be managed thus no boot flag was added. The following warning was present: *2.66 GiB of unallocated space within the partition.*
