[64-bit] User Registry Handles Leaked When Shutting Down Windows 7 Ultimate?

I have over 630 events logged in less than a year on my Win 7 Ultimate (64bit) which is basically turned one and off twice per day, all stating that my registry is leaking. Each shut down produces a 1530 event message like this below...Windows detected your registry file is still in use by other applications or services. The file will be unloaded now. The applications or services that hold your registry file may not function properly afterwards.Which is then followed by the number of leaks (from 3 to 45) but all relate to REGISTRYUSERS-1-5-21-2504074074-2207754458-538734185-1000. When I seach for this reference on the C: drive it returns me three Roaming folders under App Data. There is only one user on this machine (excluding the administrator). If there is a guest user, it doesn't show up - it boots right to my desktop.