For KVM-based hypervisors, QCOW2 offers three killer features:
Inside Windows 11:
During initial boot or inside Windows Device Manager, install the following critical drivers:
or a software TPM provider in your VM manager (like Virt-Manager) to pass the Windows 11 compatibility check. UEFI/Secure Boot : Ensure your VM firmware is set to (OVMF) rather than BIOS. : Allocate at least 4 CPU cores 8GB of RAM for smooth performance. 5. Final Performance Boosts 3D Acceleration : In your VM settings, set the Video model to and enable 3D acceleration for smoother window animations and UI response. : When adding your disk, set the Bus type to
Set up the VM with appropriate resources (at least 6GB RAM, 2 CPUs) and enable TPM 2.0 and Secure Boot.
Built-in support for target-level data encryption.
This guide covers everything you need to know about creating and using a Windows 11 QCOW2 image, with a focus on achieving "extra quality" performance.