Windows 7 Qcow2 Exclusive -

To keep the .qcow2 file portable and lightweight, you should zero out unused space before finishing.

Once the desktop loaded, she pressed Ctrl+Alt+2 to access the QEMU monitor (the command interface running behind the VM). She typed:

: Installing the SPICE guest tools or QEMU Guest Agent inside the VM is critical for features like shared clipboard, improved video resolution (QXL driver), and smooth mouse movement. Maintenance and Performance Risks

: Windows 7 requires roughly 20 GB of base storage. A raw image will consume all 20 GB immediately. A QCOW2 image, however, starts incredibly small and expands dynamically as the OS is installed and utilized. Rapid Snapshots and Rollbacks