Article ID: 958778 - View products that this article applies to.
When you install Microsoft SQL Server 2008 Express, the default instance name is set incorrectly to SQLEXPRESS.
Service pack informationTo resolve this problem, obtain the latest service pack for SQL Server 2008. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/968382/ )How to obtain the latest service pack for SQL Server 2008
To work around this problem, type MSSQLSERVER in the Named Instance box on the Instance Configuration page during setup.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in SQL Server 2008 Service Pack 1.
When this problem occurs, applications that are configured to connect to the default instance of SQL Server may be unable to connect to the default instance SQL Server 2008 Express.
Steps to reproduce the problem
For more information about SQL Server 2008 Express, visit the following Microsoft Web site:
Article ID: 958778 - Last Review: April 8, 2009 - Revision: 2.0