Windows Core is not a standalone product or operating system. It is a minimal footprint version of Windows that is used to create custom operating system images for specific devices or scenarios. Windows Core is available as part of the Windows Assessment and Deployment Kit (ADK) which can be downloaded for free from the Microsoft website. Although Windows Core itself is not available for direct download or for purchase, its usage and deployment through the ADK is subject to the applicable licensing terms for Windows. Therefore, licensing requirements and associated costs may vary depending on the intended use of the custom images created with Windows Core.