That Event Viewer entry is benign and was 1st sighted when Vista SP1 came out in 2008 - http://support.microsoft.com/kb/950375
... and resurfaced after Windows 7 SP1 - http://support.microsoft.com/kb/2545227
Are you experiencing any system performance issues?
If the only issue here are seemingly foreign items in the Event Viewer logs, you will drive yourself insane trying to figure them all out.
My advice is to read the KB, apply the "FIX" via the Fix it for me
and enjoy Windows 7!
Regards. . .