Enable discard=on on your drive configuration to allow the QCOW2 file to shrink when files are deleted inside the guest OS.
Here are some additional tips and tricks to help you get the most out of Qcow2 files with Windows 10:
He typed a new reply:
Step-by-Step: Deploying Windows 10 QCOW2 in KVM/Virt-Manager
Browse and select your downloaded or converted windows10_disk.qcow2 file. Set the OS type to . Windows 10 Qcow2 File WORK Download --BEST
This command produces a verified, working file in minutes.
Skip the multi-step Windows installation wizard completely. Enable discard=on on your drive configuration to allow
Choose as the operating system type to ensure proper hardware emulation.
Directly downloading a pre-built Windows 10 file from official sources is generally not possible because Microsoft primarily distributes Windows via ISO images. Windows 10 Qcow2 File WORK Download --BEST