Windows 11 won’t see a VirtIO disk by default. During installation:
For a pre-built QCOW2 that fails to boot due to missing drivers:
Attach both the QCOW2 and virtio-win ISO, boot into repair mode, and install drivers manually. windows 11 qcow2 download best install
Steps (libvirt/qemu tools installed: qemu-img, virt-install, virt-manager, cloud-init optional): ⚠️ Warning : Never download random “Windows 11