How to become an administrator for SQL Server Here is the situation:


I Installed VS2013    
That comes with SQL Server Express
I am not able to create a DB from VS2013
thinking that it's because of user privilege issues, I Installed SQL Server Management Studio 
I have looked to figure out how to give myself Administrator privileges on SQL Server, and nothing has worked so far
I am the administrator of my Windows7 
I run the SQL Server Management Studio as Administrator


Still I get error messages about not having permission to perform this action: Error 15247

Any ideas what I need to do to have permission 

Link to image.
Since you have made sure that you have SQL Server installed on your machine all is left is to make sure that you follow the following steps to create a database. 

1) Go to Server Explorer right click Data Connections and Select Create New Sql Server Database...



2) This will open a pop-up window enter your MachineName\SQLEXPRESS in Server Name section or select a server name from the Drop down list. 

3) Enter the New Database Name.. . 



And you are good to go.