I am having a very similar (if not exactly the same problem).
I am on an Acer Aspire ES1-512, Windows 8 Operating system, and the laptop came preinstalled with various McAfee apps/services. Around the time of purchase (of laptop), I noticed that McAffee was sapping 50-60% CPU time, namely, the "McAfee Management Service". I have no clue what McAfee Management Service does, but it is sapping resources and therefore, to my eyes, it is a virus in itself: it is bad, McAfee Management Service is bad.
It would not be so bad if I could at least end the task. But I cannot. I thought McAfee Management Service could be gotten rid of my trying to manually remove each of the listed McAfee apps/services listed on the add/remove programs, but with the reboots it is still there but now with an ever-so-annoying pop-up by McAfee every time I reboot: mentioning something about resources not being able to be loaded. This is now very bad, since I cannot properly give this laptop to my father, whom it is/was intended for, since the error message would certainly confuse my father, which would lead to my father regularly calling me to help him work out what the error message it all about. McAfee sentiment status: very bad.
Now, as a penultimately final resort I tried to uninstall all McAfee apps/services using it's (kindly invented) MCPR tool. This was just another failed lead, the MCPR tool hangs when trying to remove what it calls "VS". It hangs for ~3 hours, the testing period I gave it, before now joining this forum.
My guess to the cause of the hanging: inability to end task: "McAfee Management Service". Now I cannot test this hypothesis because I am probably missing the software that allows me to edit the access permissions to the task apropos, since I uninstalled many MacAfee apps/services. MacAffee sentiment status: extremely bad, terrible, atrocious.
Would I now have to pay for these now uninstalled apps/services, in order to edit my access permissions to "McAfee Management Service"? Would anybody be able to tell me specifically what software I would need to edit these permissions via console?