I noticed this error in the Event Viewer yesterday....

Event ID 10 — Event Filter Query Functionality

Cause
This originated in the Windows 7 SP1 DVD/ISO creation process. There was an issue in the creation process that caused a WMI registration to remain in the DVD/ISO. Since the registration is designed to work only during the DVD/ISO creation process, it fails to run on a live system and causes these events. These events are not indicative of any issue in the system and can be safely ignored. If however you want to prevent these events from getting generated and want to remove this specific WMI registration manually, please follow the steps mentioned in this article for running the workaround script.

A fix can be found here...

http://support.microsoft.com/kb/2545227

I created the Workaround.vbs detailed in the above link, which has stopped the error.