After successful installed XAMPP, we need to prepare a Database for WordPress
Start the Apache and MySQL Service
Click on the Admin button on MySQL service to go to the phpAdmin page
Click on Database tab
In the database creating, fill in:
+Database name: mywordpressdb
Click on Create button to create a new DB name mywordpressdb
If the DB is created successful, you will see it is listed on the left panel at the DB listing.