100% CPU and Windows Update wuauserv service??

Hi all. We are currently running on RHEVM 3.5 environment with Windows 7 client hosts. Each has Symantec Endpoint Protection installed.

We have this issue with many VM hosts running at 100% CPU via the RHEVM management portal. As soon as I stop the Windows Update service, wuauserv, the cpu goes back to normal %.

Anyone experiencing something similar and have a suggestion we can try to remedy this issue?