Windows: 10qcow2

If your primary operating system is Linux (Ubuntu, Fedora, Arch), a Windows 10 QCOW2 image allows you to run Adobe Creative Cloud, Microsoft Office, or proprietary enterprise software seamlessly via a virtual machine. 3. Resource Efficiency

: One of the most powerful features of QCOW2 is its native support for snapshots. Windows 10 is notorious for large updates or registry changes that can occasionally destabilize the system. By using QCOW2, administrators can take "point-in-time" snapshots of the OS state. If a Windows Update fails or a piece of software causes a "Blue Screen of Death," the VM can be reverted to its previous state in seconds.

Do not confuse this with Windows containers. Windows 10 QCOW2 is a full VM, not a container.

to install all remaining drivers for networking and performance. OpenNebula 5. Optimization & Image Prep (Optional) How to create Windows VM? - OpenNebula Forum windows 10qcow2

qemu-system-x86_64 -enable-kvm -drive file=downloaded_win10.qcow2,if=virtio

QCOW2 stands for . It is the default storage format for QEMU and KVM hypervisors. Unlike raw disk images ( .img or .raw ) which allocate the entire disk space immediately, QCOW2 utilizes storage dynamically. Key Features of QCOW2:

If you are just getting started, downloading a pre-built image from a trusted source and using virt-manager is the recommended path. If your primary operating system is Linux (Ubuntu,

When the Windows 10 setup wizard asks "Where do you want to install Windows?", the drive list will be completely blank. This is expected because Windows cannot see the VirtIO virtual hard drive yet. Click .

wget https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso

Download the latest virtio-win.iso from the official Fedora project or a similar reputable source. 3. Launch the Installation VM Windows 10 is notorious for large updates or

A 100GB QCOW2 image only takes up as much space on your host machine as the data actually written to it, not the full 100GB instantly.

After resizing the image file on the host, boot into Windows 10, open , right-click your C: partition, and choose Extend Volume to claim the newly added unallocated space.