Remove a Registered Server (SQL Server Management Studio)
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
This topic describes how to remove a server from Registered Servers in SQL Server 2016 by using SQL Server Management Studio..
To remove a registered server
In Registered Servers, right-click a server, and then click Delete.
In the Delete Confirmation dialog box, click Yes.