- Guide from https://glitchwitch.io/blog/2018-09/windows-10-on-digitalocean/
- Download Windows ISO from https://www.microsoft.com/en-us/software-download/windows10ISO
- Create a build droplet with 4GB RAM
- Install QEMU and run the Windows 10 installation ISO
$ apt-get update && apt-get install qemu -y
$ qemu-img create -f raw windows10.img 16G