The event log service is not available

I am using the 64 bit Standard Windows Server 2008. I am facing a problem with the view of ‘Event Viewer’.
When I am clicking on Event Viewer’ an error message is getting which says that ‘the event log service is not available’.
I have confirmed that the service is running properly. Also when I click on start in Windows Event log it also gave me an error message which says ‘the Windows Event Log service cannot be started’.
The instance name which had passed is not recognizing as valid by the ‘WMI’ data provider. Even the troubleshooting could not solve the problem.
It will be great if anybody can help me to solve this problem.
