Sorry for missing your post the event log messages are supposed to be nothing to worry abaout.
Satish297 1 post on your issue enough locking all other potsts. I have asked a tech to contact you try to work with him to get logs and see what he says re mcupdmgr it is a mcafee program if in the Mcafee folder.
It's a mismatch between McAfee certificates. The infamous 6807 DAT problem was (so I gather) caused by attempts to fix these mismatches so they're going about it more cautiously now. It's an informational/ warning message only and can be ignored.