First, ensure your Linux system has the necessary tools. Install QEMU, KVM, and management tools.
Add a small, temporary secondary virtual disk set to mode. Open Device Manager inside Windows 10.
Windows’ built‑in “Optimize Drives” tool can inflate a thinly‑provisioned Qcow2 image. To reclaim space, run inside the VM: defrag C: /U /V followed by sdelete -z . Then, outside the VM, use: qemu-img convert -O qcow2 large.qcow2 compacted.qcow2
pre-installed so the disk and network work immediately upon booting Method 1: Manual Creation (Most Reliable) Windows 10 Qcow2 Download Fixed
qemu-system-x86_64 \ -enable-kvm \ -machine pc-q35-6.2 \ -cpu host \ -m 4G \ -drive file=win10.qcow2,if=virtio \ -drive file=Windows.iso,media=cdrom \ -drive file=virtio-win.iso,media=cdrom \ -boot menu=on \ -usb -device usb-tablet
Rather than hunting for a sketchy "fixed" download, the most reliable method is to build a clean image from the official Microsoft source.
The file occupies only the space actually used by the guest operating system, saving physical storage. First, ensure your Linux system has the necessary tools
: Use the Microsoft Windows 10 Download Page to get the latest version.
Once your Windows 10 QCOW2 image is running smoothly, apply these configurations to boost performance and reduce disk wear on your host system:
For these reasons, Qcow2 has become the go‑to format for virtual machines in professional cloud environments (OpenStack, OpenShift) and for home users running Windows on Linux hosts. Open Device Manager inside Windows 10
I understand you're looking for a or working Windows 10 Qcow2 image for use with QEMU/KVM (like on Proxmox, virt-manager, or similar).
: If your download is unexpectedly large, use virt-sparsify --in-place image.qcow2 to reclaim unused space.
Create a blank QCow2 target image and boot your hypervisor using the compiled ISO alongside the official VirtIO driver ISO: qemu-img create -f qcow2 windows10_system.qcow2 40G Use code with caution. Essential Post-Download Fixes for Performance
This method guarantees a clean, unmodified Windows 10 image. The downside is the time investment (30–60 minutes) and the need to manually handle drivers.