Error starting MS SQL 17051

[psammite]

Error trying to start MS SQL Server 2008 R2 server service
""The SQL Server service could not be started on SQL SERVER. Details are provided in the system event log. If this service is not developed by Microsoft, contact the developer of the service, and report the error code 17051 specific to this service"

[goshawk]

a. ALTER DATABASE DB-NAME SET EMERGENCY
b. ALTER DATABASE DB-NAME SET SINGLE_USER
c. DBCC CHECKDB (DB-NAME, REPAIR_ALLOW_DA TA_LOSS) WITH NO_INFOMSGS, ALL_ERRORMSGS
d. ALTER DATABASE DB-NAME SET ONLINE
e. ALTER database DB-NAME set MULTI_USER
Description:
a. Set database to emergency mode
b. Set database to single user mode
c. Check database and repair with allow data loss
d. Back database to online mode from emergency mode
e. Set database to multi user mode