Windows 10.qcow2

as you normally would. When prompted to select a disk, choose the unpartitioned space (your 60GB .qcow2 image).

Go to Advanced System Settings -> Performance and choose "Adjust for best performance" to lower GPU overhead. Maintaining and Compacting QCOW2 Files Windows 10.qcow2

Set the drive cache to none or writeback on the host side for the best balance of safety and write performance. as you normally would

Security can be applied directly to the virtual disk layer. Windows 10.qcow2