Most of this thread has been talking about Win 10, but today I experienced this problem on Win 7 pro.
Windows 7 Professional 64-bit, Service Pack 1, all security updates applied.
Computer: Dell XPS 8500 I7-3770 @3.4 GHZ, 32 GB of Ram.
The display is Nvidia GeForce GT 640, with driver version 184.108.40.20652
Mcafee Security Center is Version 16.0, Release Name: 16.0 R7
Under that it says:
Mcafee Security Center Version 16.7, build 16.7.126, last update 2/28/2018
Mcafee VirusScan: Version 20.7, Build 20.7.134, Last Update 9/20/2017.
This morning I used the DAZ Install Manager (DAZ3d) to download and install some products I had purchased. After the download the computer seemed slow to respond. I checked the task manager and mmsshost.exe was using 27 GB of RAM, out of 32 GB. It was not using very much CPU time, just a large amount of RAM. I had not checked before using the DAZ Install Manager, so I am not sure how much it was using before, but I had never seen it using large amounts of RAM before.
I use this computer mostly to do 3d rendering with DAZ Studio and those renders can use 25-30 GB of RAM on occasion. I rebooted the computer and mmsshost.exe is currently only using 12 MB of RAM.
I have not installed any new software on this computer recently, but I note that McAfee was updated yesterday. I will monitor things closely and see if next time I use DAZ Install Manager the same thing happens.
I am done with McAfee after this lastest bug. It has been an endless battle with my laptop all over the McAfee Management Service host. Uninstalled it which took 20 minutes due to my CPU being at 99%. Installed Norton Security Suite and my CPU is down to less than 5%. Good riddance forever, McAffee.
And again, not sure about this message but you never know. After having tried many , many options which did not work (except the only one I am using till last December: start the laptop, do not login prior ±30mn), today I had a chat with a guy from the McAfee Support team and guess what, after a few minutes having discussed about the issue and tried all workarounds McAfee told me to tried, he gave me that tip: uninstall McAfee with a tool I had to download from their own site and after that see what happen. So I did it, uninstall that piece of s/w, re-install it and so far the issue has gone. I have closed the laptop and restarted it at least five times and the issue did not (yet) come back. I will see again tomorrow morning and give you all the status. The link to the un-install tool is : http://us.mcafee.com/apps/mdm/en-us/8.7_asp/getmcsubdbtool.asp
One member reply on the 2nd forum: “Re: McAfee Management Service host - VERY HIGH CPU USAGE
I know this tool. 😞
Last December I uninstalled McAfee using this tool and made sure everything was uninstalled. rebooted the computer, and installed McAfee again. All was great for about a week or so.
Then slowly trouble kicked in again, until my computer was, again, turned into a XT.”
My answer: Thanks to you for this message. Just started the Laptop this morning and logged-in immediately and like you mention in your post, my Laptop started to work without that McAfee issue. mmsshost.exe running at less than 1% (I do monitor it using a piece of s/w called "Process Hacker 2".
I will monitor it daily and report any change if happening.
In my previous mail I mentioned that I will publish the status of the Laptop after having used the tool provided by McAfee. Today, about a week, the issue has NOT poped-up again!
I monitor constantly the mmsshost.exe usage and it has not rised up to the sky like before. Is this a true working solution? I do not know but so far it continues to work. Will post a new status after a few days unless the issue reoccurs sooner.
After (being skeptical) downloading the software that you recommended, I have turned back the Real-Time Scanning after I was advised to as it may have been the cause of this stupid glitch.
Its the 3rd day, I used it the almost the whole day, downloading and using it and stuff like that.
But no problem arise! Is this the cure for McAfee?
Thanks to besoindaide for posting here.
We are glad to know that issue is fixed. Please let us the version of McAfee installed now from about screen.
Regret for inconvenience caused.
McAfee Tier 2.5 Technician
You have got te be kidding me!!!!
ONE response and according to you the issue is resolved?????
Is this the way McAfee listens and helps its customers?
Get a grip, read the forums and see this is a major issue, not one you can label resolved because ONE reply says so. Read all of my posts, after a few days, sometimes a week, it came back. Still I have to shutdown the scanner to be able to use my computer.
@ SiddharthaMcAfee Tier 2.5 Technician:
And would it be possible for the rest of the community to know what this private message says? If aprropriate obviously.
Why can't McAfee post it to all users having the same issue for month? We all could perhaps help or benefit from it.
At least we would all know that something is happening at McAfee, or may be not!