Raw QCOW2 performance can be excellent, but you must tune both the guest OS and the hypervisor.
Windows 7 does not include VirtIO block or network drivers. Get the Fedora Project’s stable ISO:
wget https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
If you have a working Windows 7 PC or laptop, you can P2V (Physical-to-Virtual) convert its hard drive to QCOW2 using dd over SSH or Clonezilla. windows 7 qcow2 image install download
This ensures no pre-existing malware and full control over drivers.
| Problem | Solution |
|---------|----------|
| “No bootable device” | Did you boot from ISO first? Check -boot d. |
| Mouse stuck | Add -usb -device usb-tablet |
| Slow performance | Ensure -enable-kvm is present and user is in kvm group |
| VirtIO drivers missing | Download from Fedora’s repo | Raw QCOW2 performance can be excellent, but you
Published: April 13, 2026 | Reading Time: 6 minutes
For virtualization enthusiasts and developers using Linux/KVM (Kernel-based Virtual Machine), the QCOW2 (QEMU Copy-On-Write 2) format is the gold standard for disk images. While Windows 7 has reached End of Life (EOL), running it as a legacy QCOW2 image remains essential for legacy software testing, industrial control systems, or classic gaming. If you have a working Windows 7 PC
This guide provides a complete walkthrough on obtaining a legal Windows 7 QCOW2 image and installing it on QEMU/KVM.