Tell me more ×  I try to connect through: Microsoft SQL Server
Database File (SqlClient), but I recieve error:  The attempt to
attach to the database failed with the following information: A
network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not
found or was not accessible. Verify that the instance name is
correct and that SQL Server is configured to allow remote
connections. (provider: SQL Network Interfaces, error: 52 -
Unable to locate a Local Database Runtime installation. Verify
that SQL Server Express is properly installed and that the Local
Database Runtime feature is enabled.)  So, i click Connect to
Database in Server Explorer  This window show up. In which i
choose: Microsoft SQL Server Database File (SqlClient) and then
browse my .mdf database file.  enter image description here
Clicking ok gives error mentioned before:  enter image
description here  Server is running, I use windows
authentication in database. Any sugestions?  share|im