SQL Server 2012 Express connection error
I installed SQL Server 2012 but not able to connection to express instance betting below error:


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: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)

Here is my SQL Server Configuration settings

![Here is my SQL Server Configuration settings][1]

![enter image description here][2]


In management studio I am providing below information to connect:

Server: .\MSSQLSERVER
Authentication: Windows Authentication

In SQL Server 2012 how can I change the settings of Surface Area Configuration.
I forgot the password for SA, so I cannot connect using SQL Server authentication.


Here is TCP IP Settings:

![enter image description here][3]


  [1]: http://i.stack.imgur.com/ukFMJ.png
  [2]: http://i.stack.imgur.com/7qeQR.png
  [3]: http://i.stack.imgur.com/u4nvW.png
SQL Server 2012 Express connection error
===

I installed SQL Server 2012 but not able to connection to express instance betting below error:


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: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)

Here is my SQL Server Configuration settings

![Here is my SQL Server Configuration settings][1]

![enter image description here][2]


In management studio I am providing below information to connect:

Server: .\MSSQLSERVER
Authentication: Windows Authentication

In SQL Server 2012 how can I change the settings of Surface Area Configuration.
I forgot the password for SA, so I cannot connect using SQL Server authentication.


Here is TCP IP Settings:

![enter image description here][3]


  [1]: http://i.stack.imgur.com/ukFMJ.png
  [2]: http://i.stack.imgur.com/7qeQR.png
  [3]: http://i.stack.imgur.com/u4nvW.png