virt-install \ --name win10-vm \ --disk path=win10.qcow2,size=50 \ --disk path=virtio-win-0.1-59.iso,device=cdrom \ --os-variant win10 \ --cdrom /path/to/Win10_install.iso
At approximately 59MB, it is significantly smaller than modern images that include drivers for Windows 10 and 11. Included Driver Components