---
title: "LOCALDB_ERROR_SQL_SERVER_STARTUP_FAILED | Microsoft Docs"
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ms.date: "03/04/2017"
ms.prod: "sql-server-2016"
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---
# LOCALDB_ERROR_SQL_SERVER_STARTUP_FAILED
    
## Details  
  
|||  
|-|-|  
|Product Name|SQL Server|  
|Event ID|266|  
|Event Source|SQL Server Local Database Runtime 12.0|  
|Component|Local Database Runtime API|  
|Message Text|Error occurred during Local Database instance startup: SQL Server process failed to start.|  
  
## Explanation  
 A SQL Server process is started but SQL Server startup failed.  
  
## User Action  
 See the event log for details.