"Process <<processname>> could not be successfully validated with the mfevtp service and was blocked from performing a privileged operation with a McAfee driver."
- where processname is, variously, "**\mcinsupd.exe", "**\MCSHIELD.EXE", or "**\aploader.exe".
I can't see that it's affecting the operation of any part of Security Centre, but I have no idea what is going on that would trigger those messages. The 'mcshield' messages are more numerous than the others, and seem to come in runs of 6 or 8 in about a 20-minute period. Is this something that I can safely ignore?