System state backup error in Windows Server 2008 and in Windows Vista: “Enumeration of the files failed”
When you perform a system state backup operation on a computer that is running Windows Server 2008 or Windows Vista, the system state backup operation fails, and you receive the following error message:
Enumeration of the files failed.
The parameter is incorrect.
Additionally, the following event is logged in the event log on the computer:
Log Name: Application
Event ID: 517
Task Category: None
User: user name
Computer: computer name
Backup started at ‘time’ failed with following error code ’2155348237′ (Enumeration of the files failed.). Please rerun backup once issue is resolved.
This issue occurs if the following conditions are true:
- There is a registry key under the following registry subkey:
Note: The [service name] placeholder is used for the name of the service name.
- The value of the imagepath registry entry that is located at this subkey points to a volume that does not exist locally.
For example, assume that you perform a system state backup operation on a passive node. Additionally, assume that the imagepath registry entry of one service that is located on the passive node points to a volume that does not exist on the passive node. In this scenario, the system state backup operation fails, and you receive the error message.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB980794.