If you need Windows these days just install virt-manager and load the version of Windows you need.

It's really fast and lightweight (my laptop stays cold at idle while running the Windows VMs) with all the HV enlightenments for good computational efficiency.

Installing and using the virtio drivers is key for many useful features such as memory ballooning, fast networking with low computational overhead, and virtiofs which is used to mount a virtual drive in the Windows guest in a way that it's not a "network" drive.