you need start sql server agent,and restart sql server service.
reason:
The information needed for SQL Server Agent to start is obtained from the registry; however, the information does not exist in the registry until after the sa password is changed by the SQL Server Enterprise Manager (SEM). This method is used on Microsoft Windows 9x computers, because they do not support trusted-connections, which is the default for Microsoft SQL Server 7.0 on both Microsoft Windows NT 4.0-based computers and Microsoft Windows 2000-based computers.
reason:
The information needed for SQL Server Agent to start is obtained from the registry; however, the information does not exist in the registry until after the sa password is changed by the SQL Server Enterprise Manager (SEM). This method is used on Microsoft Windows 9x computers, because they do not support trusted-connections, which is the default for Microsoft SQL Server 7.0 on both Microsoft Windows NT 4.0-based computers and Microsoft Windows 2000-based computers.
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