Obtaining updated Windows 10 QCOW2 images for QEMU/KVM typically involves utilizing automated tools like Quickemu for configuration or downloading pre-deployed images from community resources. Technical implementations require integrating VirtIO drivers, while best practices for creating secure, new images involve building from official ISOs and automating the process. For a guide on using automated imaging tools, refer to cloudbase/windows-imaging-tools. Yandex Cloud Desktop | Create a Windows-based image
Elias transferred the freshly converted Windows10_New.qcow2 to the KVM server. He opened the Virtual Machine Manager (virt-manager) and pointed the disk bus to the new file.
Let me know, and I can give a more targeted answer or script to generate exactly what you need.
A "new" QCOW2 image means one that includes the latest Windows 10 patches (e.g., 22H2 with the newest cumulative updates). Using an old image forces you to sit through hours of "Please wait... Installing updates."