title: SQL Server running on unknown user
body: <p>I have SQL Server 2017.</p>
  
  <p>I face the following issue: </p>
  
  <blockquote>
    <p>Msg 3201, Level 16, State 1, Server VMSERVER\SERVERNAME, Line 1<br>
    Cannot open backup device 'C:\temp\database.bak'. Operating system error 5(Access is denied.).</p>
    
    <p>Msg 3013, Level 16, State 1, Server VMSERVER\SERVERNAME, Line 1<br>
    BACKUP DATABASE is terminating abnormally.</p>
  </blockquote>
  
  <p>I did some search and most of the time, the usual recommendation is : make sure the destination folder has the permissions set right for the User under which the service SQL Server is running.</p>
  
  <p>I checked the name user name of the said service and got <code>NT Service\MSSQL$SERVERNAME</code></p>
  
  <p>I can not find this user when I look into the Security section of the <code>C:\Temp</code> folder.</p>
  
  <p>Is my only option to change the user under which the SQL Server service is running?</p>