Windows 7qcow2 Best -

: Can feel faster for small bursts of data because it uses the host RAM as a buffer, but it carries a higher risk of data corruption during a power failure. 3. Metadata Pre-allocation

A standard qcow2 file is "thinly provisioned," meaning it grows as you add data. This causes "fragmentation" as the file expands. For the best performance: windows 7qcow2 best

: You will need to load these during the Windows 7 installation process (via a mounted ISO) so the installer can "see" the qcow2 drive. : Can feel faster for small bursts of