SQL Server 2012 local instance disappeared

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I installed SQL Server 2012 with SQL Server Manager to interact with the database.

I logged in locally, I saw db master . I disconnected (I can not remember if I rebooted the machine) but I went to enter again giving this error. Anyone know how to solve it?

  

Can not connect to MATRIX \ SQLSERVER.

     

ADDITIONAL INFORMATION:

     

Network-specific or instance-specific error when connecting 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: 26 - Error Finding Server / Instance   Specified) (Microsoft SQL Server, Error: -1)

     

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asked by anonymous 31.10.2015 / 22:04

0 answers