Error 262 al crear una base de datos SQL SERVER

ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.Express.ConnectionInfo)

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CREATE DATABASE permission denied in database 'master'. (Microsoft SQL Server, Error: 262)

Al crear una base de datos con windows 8 y SQL SERVER 2012 parece que es problema de insuficientes permisos, al parecer debí agregarselo al momento de instalacion el rol de sys admin al usuario actual de windows

Are you a member of the sysadmin role? 

When you installed it, there was a page where you specified who should be sys admins for the instance. It doesn't sound like you used the right options (one of them was to Add Current User) (unless this is Express)

Como lo solucione?

Right-click and run "SQL Server Management Studio" as administrator.

In SQL Server Management Studio, connect to an instance of SQL Server.

Click en la carpeta Security para que se expanda luego,  right-click Logins, and then click New Login.

In the Login name box, enter the user name. (en vez de eso, use el boton search y busque mi usuario actual y salio TOSHIBANOTEBOOK\USUARIO ) luego pasamos a la ventana izquierda,

En la ventada izquierda llamada  Select a page, hacemos clic Server Roles, select the sysadmin check box, and then click OK.

http://stackoverflow.com/questions/24198458/how-to-fix-microsoft-sql-server-error-262

http://stackoverflow.com/questions/14625682/create-database-permission-denied-error

https://social.msdn.microsoft.com/Forums/es-ES/b6f73e14-268f-425d-b62e-ee9c2bf023f6/error-262-al-crear-nueva-base-de-datos?forum=sqlserveres