Windows 7qcow2 -

qemu-img snapshot -l windows7.qcow2

qemu-img snapshot -c before_update win7.qcow2 windows 7qcow2

| Host OS | Support | |---------|---------| | Linux (KVM) | Best – full performance | | Windows (QEMU) | Works, no KVM acceleration | | macOS (QEMU) | Works, slower | | Proxmox VE | Native – import QCOW2 directly | qemu-img snapshot -l windows7

qemu-img convert -O qcow2 win7.qcow2 win7_shrinked.qcow2 # Or: qemu-img map win7.qcow2 # Check used space windows 7qcow2

Here is a helpful guide covering both scenarios, tailored for users running Linux or using virtualization platforms.

This is the killer feature for Windows 7 testing. Keep one pristine windows7-base.qcow2 (read-only) and create multiple overlay images.