How to solve sqlserver startup failure

Solution to SQL Server startup failure

Problem: SQL Server startup failure

Solution:

1. Check the error log:

• View the SQL Server error log (usually located in the %PROGRAMFILES%\Microsoft SQL Server\MSSQL14.MSSQLSERVER\MSSQL\LOG file folder) for details about the failure.
• Check the Windows event log in Event Viewer for errors related to SQL Server startup.

2. Check permissions:

• Make sure that the account used to run the SQL Server service has sufficient permissions.
• Try to start SQL Server as administrator.

3. Verify TCP/IP protocol:

• The TCP/IP protocol must be enabled and configured to use the appropriate port (by default 1433).
• Check the TCP/IP properties in SQL Server Configuration Manager.

4. Check named pipes:

• Named pipes are the default method used by SQL Server for inter-process communication.
• Make sure that the named pipe service is running and that SQL Server has access to the pipe name.

5. Reinstall SQL Server:

• If all other methods fail, you can try reinstalling SQL Server.
• Please back up all databases and data files before reinstalling.

6. Check the disk space:

• Confirm that the disk where the SQL Server data files and log files are located has enough free space.

7. Repair system files:

• Use System File Checker (SFC) tool to repair damaged system files:

  • In the command prompt, run sfc /scannow as administrator.

#8. Update SQL Server:

• Install the latest SQL Server patches and updates to resolve known issues .

9. Check anti-malware programs:

• Some anti-malware programs may interfere with SQL Server startup.
• Temporarily disable the anti-malware program and then try starting SQL Server.

10. Contact Microsoft Support:

• If you still cannot resolve the issue, please contact Microsoft Support for further assistance.

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