title: How to delete the localdb instance owned by System
body: <p>I deleted the localdb instance files which were located in </p>
  
  <blockquote>
    <p>"C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Microsoft
    SQL Server Local DB\Instances\v11.0"</p>
  </blockquote>
  
  <p>by accident. The system cannot start the localdb instance now. The way that I know how to fix the issue is to delete the instance by command </p>
  
  <blockquote>
    <p>"sqllocaldb delete instancename"</p>
  </blockquote>
  
  <p>, and re-create the instance again. But I found this approach could only work for user account if I deleted the instances files located in </p>
  
  <blockquote>
    <p>"C:\Users\UserName\AppData\Local\Microsoft\Microsoft SQL Server Local
    DB\Instances\v11.0"</p>
  </blockquote>
  
  <p>So how can I solve this problem to delete the db instance owned by System?</p>