The SQL Server (MSSQLSERVER) service terminated unexpectedly. Event ID: 7034 Unable to find the cause why the SQL Server Service was Terminated Unexpectedly? (Event ID: 7034)

I looked into the SQL Server Error Logs but could find the reason about why the SQL Server service was terminated.

So check the windows event Viewer and I found the following error msg:

Event Message : The SQL Server (MSSQLSERVER) service terminated unexpectedly. It has done this 1 time(s).

Error Event Id : 7034 

Since last night my SQL server service is terminating with the this error.

This service terminates and restarts automatically and sometimes doesn't restart we have to manually start it again.

Version Details:
Microsoft SQL Server 2016 (RTM) - 13.0.1601.5 (X64) Standard Edition (64-bit) 

OS: Windows Server 2012 R2 Standard 6.3  (Build 9600: ) (Hyper-visor)
Error Event Id : 7034


Service Control Manager (SCM) stops services and driver services. It also reports when services terminate unexpectedly or fail to restart after it takes corrective action.

How to Resolve

Change the recovery actions


To resolve this issue, change the recovery actions that the Service Control Manager (SCM) will take when a service fails.
To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To change the recovery actions for a service:


Open the Services snap-in by clicking the Start button, Control
Panel, and Administrative Tools, then double-clicking Services.
Note: For Windows Vista, use the Classic View display option in
Control Panel to see the Administration Tools.
In the details pane of the Services snap-in, right-click on the name
    of the service you want to stop and select Properties.
Click the Recovery tab and specify the recovery actions for the
    service (for example, restart the service or the computer, take no
    action, or run a program).


For your further ref Here and Here