: If you wish to dynamically allocate space or resize the image, you can do so after converting:
qemu-system-x86_64 -enable-kvm -m 2048 -cpu host -smp 2 \ -drive file=windows8.qcow2,format=qcow2 \ -cdrom windows8.iso -boot d \ -vga qxl -display gtk windows 8 qcow2
If the software crashes your Windows 8 VM, revert instantly: : If you wish to dynamically allocate space
The answer lies in software archaeology. Windows 8 introduced the "Metro" or "Modern" app environment. While Windows 10 kept this, the specific architecture of early Windows 8 apps is unique. Some enterprises built internal tools specifically for the Windows 8 ecosystem that do not run correctly on later versions due to dependency changes. windows 8 qcow2
What format to use for KVM Windows guests - RAW, QCOW2, VMDK