title: Cannot log in to LocalDB
body: <p>I accidentally deleted my domain logon from SQL Server LocalDB. It was the only logon on the server.</p>
  
  <p>How can I get access back to my instance? Every time I try connecting I get the message <code>Logon failed for domain\user</code>.</p>
  
  <p>I tried reinstalling and repairing with no luck. </p>