Windows 8 Qcow2 [updated]

qemu-system-x86_64 -enable-kvm -m 4096 -smp 2 \ -drive file=windows8.qcow2,if=virtio,format=qcow2 \ -cdrom /path/to/windows8_install.iso \ -drive file=virtio-win.iso,media=cdrom \ -boot order=d -vga qxl -spice port=5900,disable-ticketing=on Use code with caution. Key Parameters Explained:

The -c flag enables compression, often reducing a 15GB image to 8GB. windows 8 qcow2

qemu-system-x86_64 -enable-kvm \ -m 4096 \ -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time \ -smp sockets=1,cores=2,threads=2 \ -drive file=windows8.qcow2,if=virtio,format=qcow2,cache=none,aio=native \ -cdrom /path/to/windows_8_install.iso \ -drive file=virtio-win.iso,media=cdrom \ -net nic,model=virtio -net user \ -vga qxl \ -usb -device usb-tablet \ -boot d Use code with caution. Key Parameter Breakdown: qemu-system-x86_64 -enable-kvm -m 4096 -smp 2 \ -drive

qemu-system-x86_64 -enable-kvm -m 4G -smp 4 \ -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time \ -drive file=windows8.qcow2,if=virtio,cache=none,aio=native,format=qcow2 \ -cdrom /path/to/windows8_install.iso \ -drive file=/path/to/virtio-win.iso,media=cdrom \ -vga qxl -boot d Use code with caution. Performance Flags to Note: Use the qemu-img utility to generate a blank virtual disk

Space is allocated dynamically. A 100GB allocated Windows 8 disk only consumes the space actually used by the guest OS on the host drive.

Use the qemu-img utility to generate a blank virtual disk. Allocate a virtual capacity of at least 40 GB to accommodate the Windows OS, page files, and user data. qemu-img create -f qcow2 windows8.qcow2 40G Use code with caution.

Over time, deleting files inside Windows 8 leaves empty space inside the QCOW2 file. You can reclaim host storage space by converting and compressing the image: