Microsoft Deployment Toolkit (MDT) may be connected to a Microsoft SQL Server Express database. Below you will find a step-by-step guide for configuring the database.

1. In the Deployment Workbench navigate to the Advanced Configuration section, right click Database, and select New Database.
2. In the SQL Server Details dialog box provide the SQL Server name:, Instance:, Port:, and Network Library:. Then, click Next.
3. In the Database dialog box select Create a new database and provide a database name in the Database: section. Then, click Next.
4. In the SQL Share dialog box enter a share name in the SQL Share: section. Then, click Next.
5. In the Summary dialog box review the configuration. Then, click Next.
6. In the Configuration dialog box verify the process completed successfully. Then, click Finish.