-s parameter launches the process using SYSTEM account. Setting Permissions for a SQL Server backup folder ... - Voice of the DBA KB2095: SQL VSS Writer is missing: databases will be backed up in crash ... and https://www.windowscentral.com/how-restore-trus. 50. Domain and account: NT SERVICE\MSSQL$MICROSOFT##WID This service account does not have the required user right "Log on as a service." User Action Assign "Log on as a service" to the service account on this computer. If using a named instance, provide only the server name of the node; do not include the instance name. Allow the SQL Writer service account access to the Volume Shadow Copy service via the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS\VssAccessControl If the DWORD value "NT SERVICE\SQLWriter" is present in this key, it must be set to 1. Easiest way is, just type the account and leave the password blank. I have installed windows 2012, the domain controller and now sql. Using xp_instance_regread, you can find this information. The NT SERVICE\SQLSERVERAGENT login is how the Windows process that is SQL Server Agent connects to the Database Engine to read the msdb database to find out what it should do; and then do it. When you get to the Server Configuration page as shown below, you will notice that the SQL Server Database Engine service is using the account NT Service\MSSQLSERVER. How to Get Rid of SQL Server Database Access Denied Error (don't click "Check Names" - if you click Check Names it can happen that you get an error 'An object named "NT SERVICE\MSSQLSERVER" cannot be found.) DistributedCOM Error. Solved - Windows 10 Forums When we try to connect the server from the server the MSSQLServer service stops.We even tried reinstalling the entire setup from scratch.