Windows 10.qcow2 Jun 2026
By default, QEMU uses generic hardware which can be slow. For the best performance:
The resulting windows10_compressed.qcow2 file is now fully optimized and ready to serve as a baseline template across your cluster. Deploying Your .qcow2 File on Proxmox VE
To verify the creation:
Additionally, install the (QEMU Guest Agent) from the installer directory. This allows the host Linux machine to cleanly shut down, reboot, and freeze filesystems in the Windows guest during backups. Performance Optimization for Windows 10 QCOW2
QCOW2 is the default disk image format for the QEMU emulator and is a successor to the earlier QCOW format. It is a sophisticated format that stores the entire state of a virtual hard drive, including the operating system, applications, and user data. Windows 10.qcow2
Change the disk bus type from VirtIO to SATA or IDE in your hypervisor settings. Boot into Windows, install the VirtIO driver bundle, shut down, and switch the bus back to VirtIO . QCOW2 File Size Exploding
openstack image create "Windows 10" \ --file windows_10.qcow2 \ --disk-format qcow2 --container-format bare \ --property os_type=windows --public Use code with caution. 3. GNS3 / EVE-NG (Network Simulations) By default, QEMU uses generic hardware which can be slow
Upload the Windows 10.qcow2 file to your Proxmox server (e.g., via SFTP). Create a new VM. Import the disk to the VM using the CLI:
On your Linux host, you'll need the core virtualization packages. The exact commands may vary by distribution, but for most Debian/Ubuntu-based systems, the following command installs everything you need: This allows the host Linux machine to cleanly
Select viostor -> w10 -> amd64 to load the storage driver. The QCOW2 disk will appear. Proceed with the standard installation.