Incorrect collation SQL 2012

Hi, 

While installation SharePoint 2013 I got the following error: 

The database name located at the specified database server has an incorrect collation. Rebuild the database with the Latin1_General_CI_AS_KS_WS collation or create a new database using the Latin!_General_CI_AS_KS_WS collation. 

I am using SQL 2012. 

What are the steps in changing this in SQL 2012? 

Thanks.