[ SOLVED ] “login failed” (Error 18456) error messages in SQL Server 2005

1. Follow instruction from here

by looking at C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\Log\ERRORLOG

It will show the cause of the error

2. For me, when I setup the SQL server, I set the security of the SQL server to accept the window authentication only.

Follow the way how to change from SIVAPRASAD S – SIVA here

by right click at the server > Properties

รูปภาพ

 

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