The SQL Server Agent service is used by SQL Server to execute scheduled tasks. It is typically used for items such as backing up the SQL Server database or other maintenance tasks. By default, this service is not enabled when you install SQL Server. This blog post will show you how to enable this service.
Enabling SQL Server Agent service
As with any SQL service, you should NOT enable or change them to use the Services Microsoft Management Console (MMC) snap-in; instead, you should use the SQL Server Configuration Manager tool.
1. To start this process on your SQL Server, launch SQL Server Configuration Manager.
If you have any questions, please feel free to contact me at @GarthMJ.