If you already have a Windows XP virtual machine in another format (like a from VirtualBox), you can convert it to QCOW2 using
The QCOW2 (QEMU Copy-On-Write) format is preferred over raw images because: Thin Provisioning: Windows Xp-qcow2 Download
It involves digging out an original XP installation disc (or finding a reputable ISO source if one owns a license), installing VirtualBox or QEMU, and manually configuring the environment. It involves the pain of installing "Guest Additions" to get the mouse to work seamlessly. It involves the frustration of finding drivers for a virtual graphics card. If you already have a Windows XP virtual
For those who want to stay on the right side of the law and security, the "qcow2 download" is a trap. The proper route is tedious but safer. For those who want to stay on the
Minimum 128MB, but 512MB–1GB is recommended for modern responsiveness.
Yes, but build it yourself.