qemu-img create -f qcow2 windows10.qcow2 60G
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The format supports built-in AES encryption and zlib compression, which is useful for archiving images or securing sensitive data. How to Create a Windows 10 QCOW2 Image qemu-img create -f qcow2 windows10
To understand the significance of a Windows 10 QCOW2 image, one must first understand the mechanics of the format itself. QCOW2 is the native disk image format for QEMU (Quick Emulator), an open-source machine emulator and virtualizer. Unlike a raw disk image, which allocates the entire specified disk size immediately (creating a file as large as the virtual drive regardless of data contained), QCOW2 operates on a "sparse" basis. It grows dynamically as data is written. This is particularly beneficial for Windows 10, an operating system known for its large installation footprint. A standard Windows 10 installation may require 20 to 30 gigabytes, but a QCOW2 image created for a 100-gigabyte drive will initially only take up a fraction of that space on the host machine, preserving valuable storage resources. Can’t copy the link right now
The Ultimate Guide to Windows 10 QCOW2: Setup, Optimization, and KVM Deployment
Change the disk bus type from IDE/SATA to VirtIO . Network Card (NIC): Change the Device Model to virtio .
Select the VirtIO Block Storage driver to reveal the QCOW2 disk target.