title: I can't sign in to SQL Server 2014
body: <p>I can't sign in to SQL Server 2014 Express. </p>
  
  <p>I have selected <code>HP\SQlExpress</code> as the server name and selected Windows authentication. This login has worked up until yesterday.</p>
  
  <p>When I try to connect I get the error message in the attached screenshot.</p>
  
  <p><a href="https://i.stack.imgur.com/EslL0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EslL0.png" alt="Sql"></a></p>
  
  <p><a href="https://i.stack.imgur.com/WSThW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WSThW.png" alt="enter image description here"></a></p>