Windows Xpqcow2 _verified_ Link

<disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='writeback' io='native'/> <source file='/var/lib/libvirt/images/winxp.qcow2'/> <target dev='hda' bus='ide'/> </disk>

qemu-img create -f qcow2 -o cluster_size=256k windows_xp.qcow2 40G Use code with caution. 2. Optimizing the QEMU/KVM Startup Command windows xpqcow2

You likely didn't install VirtIO drivers before converting. Change if=virtio to if=ide in your QEMU command to boot. disk type='file' device='disk'&gt

Windows XP’s ACPI idle loop does not natively yield the CPU back to the hypervisor. target dev='hda' bus='ide'/&gt

qemu-system-x86_64 -m 1024 -cpu pentium3 -smp 1 \ -drive file=windows_xp.qcow2,format=qcow2,media=disk,bus=0,unit=0 \ -cdrom /path/to/windows_xp_sp3.iso -boot d \ -vga std -net nic,model=rtl8139 -net user Use code with caution.

qemu-system-x86_64 -m 512 -smp 1 -drive file=winxp.qcow2,format=qcow2 -cdrom your-windows-xp.iso -boot d -vga std