qemu-system-x86_64 -M q35,usb=on,acpi=on -m 4G -cpu host \ -accel kvm -drive file=windows7.qcow2,format=qcow2,if=virtio \ -device usb-tablet -vga virtio -net nic,model=virtio Use code with caution. 3. Disable Visual Effects
Windows 7 does not natively include VirtIO drivers. windows 7 qcow2 file
Inside the Windows 7 guest, run a defragmentation tool or zero-out free space using sdelete -z c: . Shut down the VM. qemu-system-x86_64 -M q35,usb=on,acpi=on -m 4G -cpu host \