I've had this exact issue ever since installing Win 8 on my Gigabyte Z68X-UD4-B3. An update to Win 8.1 did not help. I'm running the latest U1e UEFI. I've spent countless hours looking for a fix and trying anything that looked promising without finding the cure. This computer seems to work as it should, but the Event 137 in the viewer is irritating.
I look forward to seeing if this thread generates any ideas.