Windows: 7qcow2
Download a genuine Windows 7 ISO from a trusted source. Using a clean, unmodified ISO is crucial for a stable installation, as opposed to pre-packaged or "ghost" versions that may include unwanted modifications and often lead to boot issues.
Browse to the CD-ROM drive containing the VirtIO drivers and let Windows search for the appropriate driver. windows 7qcow2
qemu-img snapshot -l win7.qcow2
Note: After running this, you must boot into Windows 7, open , right-click the C: partition, and select Extend Volume to claim the unallocated space. Converting Existing Windows 7 Virtual Machines to QCOW2 Download a genuine Windows 7 ISO from a trusted source
Open a terminal and run:
Switch the network adapter to virtio in your VM configuration for better network throughput. qemu-img snapshot -l win7
sudo dd if=/dev/sda of=windows7.raw bs=4M status=progress qemu-img convert -f raw windows7.raw -O qcow2 windows7.qcow2