To get the best Windows 11 performance in a virtual environment, you typically cannot download a pre-made .qcow2 file directly from Microsoft ; instead, you must create one from an official ISO.
Getting a pre-made QCOW2 image of Windows 11, or creating your own, can save you a massive amount of time, especially if you frequently work with virtual machines. Instead of going through the full Windows installation process every time, you can have a base QCOW2 image with Windows 11 already installed, configured, and ready to go. This is a popular practice in home labs and enterprise environments for quickly deploying "ephemeral" virtual machines.
Windows does not support QCOW2 files natively. To use them, you have two primary options: Tutorial: how to create a Windows 11 VM - Fedora Discussion windows 11 taoqcow2 better download
Many users have reported speeds of up to 100 MB/s using this method, as these tools connect directly to the fastest possible server and split the file into multiple simultaneous streams to saturate your internet connection.
Bypasses the host page cache entirely, writing directly to the storage medium. This is the safest and most performant mode for modern Solid State Drives (SSDs) and Non-Volatile Memory Express (NVMe) drives. To get the best Windows 11 performance in
Instead:
The term "Taoqcow2" refers to a specific build of Windows 11 that is popular among users who want to download and try out the operating system. This build is not officially recognized by Microsoft, but it has gained a reputation among users for being a stable and feature-rich version of the OS. This is a popular practice in home labs
The recommended controller for modern setups. It supports features like discard/trim commands, which pass deleted space back to the host SSD.
There are many reasons why users might want to download Windows 11. Some of the key benefits include:
Knowing your setup can help me find the exact conversion steps for you. CONVERT VMDK TO QCOW2. -Migrated from my original blog