The system event log can get full of these types of message, it usualy means a DCOM service needs additional permissions to be set. But in Windows 2008 R2 you will find the DCOM settings are all greyed out. This is by design and you will not have permission to change these settings until you follow the guide below.
1. Event Log ID 10016
	
Look for the Event Log ID 10016 in the System Log and then open the event. Take note of the GUID that is referenced.
2. Search Registry
	
Open regedit32 and search for the GUID.
3. Key Permissions
	
When the key is found right click on the key and choose permissions.
4. Advanced Permissions
	
Click on the Advanced button.
5. Owner
	
Click on the Owner tab and then note the current owner is TrustedInstaller.
6. Change Owner
	
Click on the Security Group you want to change ownership to and then click Apply to change this. Note the change of current owner.
7. Change Permissions
	
Return to the permissions properties and highlight the Security Group you want and then assign the Full Control permission.
8. Confirm DCOM Properties
	
Open the DCOM MMC and you will see that the properties for the DCOM object are now not greyed out.
 
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