title: Database already exists even after deleting the database files
body: <p>I installed a trading software that uses pair specified and gives me details about it. For initiating the software I have to create a database that it uses to store and retrieve information from. Now I have deleted the database(mdf and ldf file) and now when I create it again it shows that database already exists error. Do I have to delete DSN or something?
  I can do create database using another sql server instance, but I want to do on the same one.
  I am clueless. Thanks in advance.</p>