Bootable Windows 10 iso from linux
For some damn reason windows isos are not dd-able.
I found instructions that worked, written by Lithium79 on arstechnica forums Link
# fdisk /dev/sdY
create single partition type 7+bootable partition
# mkfs.ntfs -f /dev/sdY1
# ms-sys -7 /dev/sdY
# mount -o loop win7.iso /mnt/iso
# mount /dev/sdY1 /mnt/usb
# cp -r /mnt/iso/* /mnt/usb/
# sync
# umount /mnt/usb
# eject /dev/sdY
and, as he says, if you don't have ms-sys you can install it from Source. You just have to run make.