The (QEMU Copy-On-Write) format is primarily used by the QEMU emulator. Users often look for pre-built Windows XP QCOW2 files or "reports" on their performance because:
qemu-img create -f qcow2 windows_xp.qcow2 10G i--- Windows Xp Qcow2
Windows XP does not natively support VirtIO disks. You must install it using an emulated IDE controller first, then migrate. The (QEMU Copy-On-Write) format is primarily used by