: Includes everything from the Enterprise Edition, such as Always On availability groups, advanced security (Transparent Data Encryption), and high-performance scalability. Intelligent Query Processing

During a custom install, the "Feature Selection" screen is the most critical. At a minimum, you should check Database Engine Services . If you are doing data analysis, you might also want Analysis Services Shared Features like Client Tools SDK. 4. Instance Configuration You can choose between a Default Instance (MSSQLSERVER) or a Named Instance

The database engine is installed, but you need a tool to manage it. SSMS is the standard integrated environment for managing SQL Server.

To ensure a "new" installation goes smoothly, verify your hardware first. SQL Server 2019 is robust but hungry.