The three options offered are the Windows 11 Installation Assistant, Create Windows 11 Installation Media, and Download Windows 11 Disk Image (ISO). The first choice is best for those installing Windows 11 on the device that is currently being used. The second option pertains to those wanting to perform a reinstall or clean install of Windows 11 on a new or used PC; use this option to download the media creation tool to make a bootable USB or DVD. The ISO download is intended for users that want to create a bootable installation media (USB flash drive, DVD) or create a virtual machine (.ISO file) to install Windows 11. This download is a multi-edition ISO that uses your product key to unlock the correct edition.