Windows 11 requires TPM 2.0. In a KVM environment (like ), you must: Add a TPM Device (Type: TIS, Model: 2.0). Use OVMF (UEFI) firmware instead of legacy BIOS.
Official QCOW2 files for Windows 11 do not exist on Microsoft's servers. You have two primary official paths to obtain a working disk image: windows 11 qcow2 download best install