Windows 10 Enterprise LTSC 2021 builds on Windows 10 Pro. version 21H2 adding premium features designed to address the needs of large and mid-size organizations (including large academic institutions). such as advanced protection against modern security threats. full flexibility of OS deployment. updating and support options; as well as comprehensive device and app management and control capabilities. The LTSC edition provides customers with access to the Long-Term Servicing Channel as a deployment option for their special-purpose devices and environments. The LTSC edition will not be updated with any new features; features from Windows 10 that could be updated with new functionality (including Cortana and all in-box Universal Windows apps) are not included.