- Port conflict: it may be due to another application occupying the port used by SQL Server, preventing SQL Server from starting.
- The account permissions issue: The account used by the SQL Server service may not have enough permissions to start the service.
- If the database file is damaged or missing, SQL Server will not be able to start properly.
- Insufficient system resources: If the system resources (such as memory, disk space) are lacking, SQL Server may not be able to start.
- Incorrect SQL Server configuration can prevent the service from starting if there are errors or incorrect settings in the configuration file.
- Installation issues: Problems or incomplete installations during the SQL Server installation process may prevent the service from starting properly.
- Virus or malware infection: If there is a virus or malware present in the system, it may cause the SQL Server service to fail to start.
- Hardware failure: If the server experiences hardware issues such as disk failure or memory failure, it may prevent SQL Server from starting up.
- Other software conflicts: Some software installed on the system may conflict with SQL Server, causing the service to be unable to start.
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