title: How to delete a LocalDB instance completely?
body: <p>I am using SQL Server 2014 Express and Visual Studio Community 2015.</p>
  
  <p>When I used <code>sqllocaldb i</code> to list all localdb instances in my PC, I can see 2 instances, e.g. <em>MSSQLLocalDB</em> and <em>ProjectsV12</em>. I can stop and delete an instance by using <code>sqllocaldb stop MSSQLLocalDB</code> and <code>sqllocaldb delete MSSQLLocalDB</code>.</p>
  
  <p>Then I deleted the folder <em>MSSQLLocalDB</em> under <code>AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\</code>, but when I run <code>sqllocaldb i</code> again, both localdb instances still exist. The problem is that when I launch VS2015, the deleted folder will be re-generated!</p>
  
  <p>How can I delete the localdb instance from my PC completely?</p>