Windows Xp Qcow2 ((exclusive)) -

Running Windows XP via QCOW2: A Modern Guide for Legacy Virtualization

qemu-img create -f qcow2 windows-xp.qcow2 20G

Install

qemu-system-x86_64 -drive file=winxp.qcow2,format=qcow2,if=ide -cdrom xp.iso -boot order=d -m 1024 -vga cirrus windows xp qcow2

9) Security and networking examples