title: How do I grant myself sysadmin-role to a local SQL Server instance?
body: <p>This question is identical to this one: <a href="https://stackoverflow.com/questions/9889334/how-do-i-grant-myself-admin-access-to-a-local-sql-server-instance">How do I grant myself admin access to a local SQL Server instance?</a>, except... my question is about SQL-Server 2012, not 2008. The answers from above question do not work, since, as it seems, I do not have enough rights.</p>
  
  <p>The problem: I have a SQL-server instance (SQL-Server Express 2012), the original owner is killed (the account is killed, not the person himself), so no one is sysadmin anymore.</p>
  
  <p>I am local administrator on the machine and want to grant myself the sysadmin-role on SQL-Server, without reinstalling it.</p>
  
  <p>How?</p>