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The file size on your physical disk only grows as data is written to the virtual machine (VM), rather than taking up the full allocated space immediately.
Setting up Windows XP using a (QEMU Copy-On-Write) disk image is a popular way to run legacy software on modern systems like Linux, macOS, and iOS. The QCOW2 format is ideal because it only takes up disk space on your host machine as data is added to the virtual machine. 1. Prerequisites To get started, you'll need the following: Hypervisor: QEMU/KVM (Linux), UTM (macOS/iOS), or Proxmox . windows xpqcow2
Inside the XP VM, zero out free space (e.g., using sdelete -z ), then: The file size on your physical disk only
Windows XP is notoriously vulnerable to malware by modern standards. QCOW2 allows you to save "states," letting you revert to a clean install in seconds if something goes wrong. Compression: QCOW2 allows you to save "states," letting you
Ready-to-use QCOW2 images can sometimes be found on platforms like SourceForge or community forums, though creating your own is safer for security. Convert from VDI/VMDK:
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