You can download the Windows 11 ISO directly from the official Microsoft website. Here's how:
1. **Go to the Microsoft website**: Open your browser and navigate to the [Windows 11 download page](https://www.microsoft.com/software-download/windows11).
2. **Select the version**: Choose the edition of Windows 11 you want to download.
3. **Create Windows 11 Installation Media**: Scroll down to the "Create Windows 11 Installation Media" section and click on "Download now".
4. **Run the tool**: After downloading the Media Creation Tool, run it and follow the instructions to create an installation media (USB flash drive or DVD) or to download the ISO file.
5. **Save the ISO file**: If you choose to download the ISO file, select the location on your computer where you want to save it.
6. **Burn the ISO file**: If you need to create a bootable USB or DVD, you can use software like Rufus or the Windows USB/DVD Download Tool.
Make sure your system meets the minimum requirements for Windows 11 before proceeding with the installation.