You will have to hunt around for the ISO either on Twitter or just by running a Google Search. Download Windows 11 ISO for MacĮven though the Insider Preview build for Windows 11 has been released, you will not find it on Microsoft’s official website. Also, make sure your Mac is running on the latest version of the OS. Your system should have between 64GB to 128GB of storage space, as well as the Windows 11 ISO.