To download and use Gandalf’s Windows 11 PE (Preinstallation Environment), you typically need to acquire the ISO from the developer's official site or community mirrors and flash it to a USB drive using a tool like 1. Acquisition & Precautions Official Source
Arthur chuckled nervously. "Cute," he muttered. He clicked Ignore . To download and use Gandalf’s Windows 11 PE
Microsoft officially ended the "Redstone" codename series with Redstone 5 (Windows 10 version 1809). Subsequent versions moved to different naming conventions. these are widely used
If you cannot find the specific 2021 version, these are widely used, modern alternatives: Hiren’s BootCD PE modern alternatives: Hiren’s BootCD PE