Getting error while opening the database?

in my system when i am opening the database i get this error like this :

Cannot connect to server\sql2005.

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ADDITIONAL INFORMATION:

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the开发者_JS百科 fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476

can you help me.

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Take a look at the Microsoft Documentation....

Troubleshooting Server and Database Connection Problems