Microsoft® SQL Server® Express is a free edition of SQL Server and is easy to install and prepare for use compared to the other SQL Server editions.

The installation wizard installs Microsoft SQL Server Express 2022 unless SQL Server is already installed on the computer. When you install XProtect VMS as an upgrade, the wizard keeps the previous SQL Server installation.

To check if your system meets the requirements for SQL Server editions, see https://www.milestonesys.com/systemrequirements/.