This typically means the installer includes six different installation options in a single image. While these can vary by the creator, they generally include: Standard Edition (Server Core & Desktop Experience). Datacenter Edition (Server Core & Desktop Experience). Essentials Edition . Windows Server 2019 Improvements overview - Directory FAQ

: Follow the installation wizard to select the edition, language, and other installation options.

: This indicates it is designed for 64-bit architecture, which is the only platform supported by Windows Server 2019. Microsoft Support Core Features of Windows Server 2019

: Using this software requires a valid product key and license. Evaluation versions are available for testing for 180 days. KB5031361 (OS Build 17763.4974)

: Download the Windows Server 2019 with Update 17763.4974 AIO 6in1 -x64- October 2023.rar file from a trusted source.