There’s a lot of suggestions out there but the easiest is to install git-bash (which comes with all the actual utilities that matter including dd and then use the /dev/sd* notation as revealed from cat /proc/partitions.
rob@tv:/$ cat /proc/partitions
major minor #blocks name win-mounts
8 0 1000204632 sda
8 1 102400 sda1
8 2 16384 sda2
8 3 999561542 sda3 C:\
8 4 521216 sda4
8 16 7864320 sdb
8 17 7864288 sdb1 D:\
Then a good example of dd is something like this:
sudo dd bs=4M if=/path/to/ubuntu.iso of=/dev/sdX conv=fdatasync status=progress