Windows Event Log service maintains a set of event logs that the system, system components, and applications use to record events. The service exposes functions that allow programs to maintain and manage the event logs and perform operations on the logs, such as archiving and clearing.
As such, administrators can maintain event logs and perform administrative tasks requiring administrator privileges. For some unknown reason if you find you are having difficulty starting:
Windows Event Calendar
Messenger Sharing Folders
it is quite possible that one of the reason could be that Windows Event Log Service is Not Running.
Fix: Windows Event Log Service not functioning
To Enable and Start this service : Rt Click on Computer > Manage > Services & Applications > Services.
Here, again Rt click on Windows Event Log Service, check up its Properties.
Ensure that the Startup type is set on Automatic and that the services is Started; and that it runs in the Local Service account.
Also ensure in the Recovery tab, all three drop down boxes, show the option as ‘Restart the Service’, in case of Failure. Reboot if required.
If the Windows Event Log Service still cannot be started, and you instead get the error :
Open folder C:\Windows\System32\winevt\Logs . This logs folder contains Event Logs in .evtx format and can only be read with the Event Viewer.
Give this Logs folder Read-Write access rights and see if it helps !
If it still does not help:
Start >Search Menu Bar > sfc /scannow > rt click on result > Run As Administrator. This post will show you how to analyze the log file entries that SFC.exe generates in Vista.