Last reviewed: [Current Date] | Supported QEMU version: 6.0+ | Windows 7 SP1 required for UEFI/VirtIO support

qemu-img snapshot -l win7.qcow2

qemu-img convert -f vdi -O qcow2 windows7.vdi windows7.qcow2

This command reverts the virtual disk to the specified snapshot.

| Feature | Benefit | |---------|---------| | | Rollback after malware testing or configuration errors | | Backing file | One base Windows 7 image + many differential overlay files | | Compression | qemu-img convert -c -O qcow2 win7.raw win7.qcow2 reduces storage | | Encryption | AES-256 for sensitive legacy data | | Sparse allocation | Only use real disk space for written sectors |

qemu-img commit windows7_snapshot1.qcow2