Microsoft .NET Framework NGEN v4.0.30319_64 should it say started in Services or not on the SQL server 2008 R2 environment

We found that the Microsoft .Net Framework NGEN (clr_optimization_v4.0.30319_64
and clr_optimization_v4.0.30319_32 ) service is stoped with automatic(delayed start) when we tried to start it give us the below error :

The Microsoft .Net Framework NGEN service on the local computer started and then stopped.Some service stop automatically if they are not used by other services or programs