You can create the disk via the GUI or command line.

QCOW2 natively supports software-level compression to save host storage space.

You can create a "master" Windows XP QCOW2 image and spawn multiple linked clones from it instantly without duplicating the base file size. Step 1: Creating the Optimal QCOW2 Virtual Disk

By following this guide, you can move from installation to optimization, understanding how to leverage KVM acceleration and VirtIO drivers for a smooth and responsive Windows XP environment. While the operating system itself is a relic of the past, the combination of QEMU and qcow2 ensures its software legacy can continue to function reliably and securely for years to come.

utility on your host machine. 20GB to 40GB is typically the sweet spot for XP. qemu-img create -f qcow2 winxp.qcow2 Use code with caution. Copied to clipboard

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: Allocate at least 512 MB of RAM for Windows XP. For a smoother experience with Service Pack 3, 1 GB (1024 MB) is recommended. Assign 1 CPU core (vCPU).

qemu-img convert -O qcow2 -c windows_xp.qcow2 windows_xp_compressed.qcow2 Use code with caution. Creating Base Templates (Linked Clones)

Are you planning to use this Windows XP image for or for retro gaming ?

Proprietary software (CNC machines, scientific instruments, accounting tools) often only runs on XP.

qemu-img convert -O qcow2 ~/vms/winxp.qcow2 ~/vms/winxp-compacted.qcow2