Second, you could use tools from a site called UUP dump to download the files from Microsoft's update servers and build a custom ISO that's fully up-to-date with an insider build that's even newer than release build. First, you can download a Windows 11 ISO directly from Microsoft. Fortunately, there are a few ways to get one.
What you need is a Windows 11 ISO file you can boot from and use for a clean install or an in-place upgrade.
