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Windows 7: MSE thrashing disks after boot.

09 Sep 2011   #31

win 7 home premium 64 bit

Quote   Quote: Originally Posted by karmoss View Post

Thanks for the info, i will try running a full scan and manually and see if MpIdleTask
disappears or not.

But at this moment, I cannot see any notification or warning like "hey dude, do a full scan, or I will do it when you are idle" everything is all green an OK.


You won't see any loud warnings like this from MSE, the idea being that it works quietly in the background supposedly so that you are not bothered by it. However it is hard not to notice the constant flickering and noise of a HDD....the auto MpIdleTask scan is a FULL scan that is spread out and only is actively scanning when you leave the computer idle. When you are actively using the PC the scan stops until the next time it is left idle.

When you do the manual full scan you are overriding the automatic full scan and it will be done quicker since the manual scan will be continuous until completion. Usually the manual scan (depending what is on your PC ) can be completed in 1 to 4 hours. While that "auto" full scan could take days, literally. Again like I said before usually this auto scan application only occurs if a major update has been applied to the MSE engine. Like when you update MSE to client version 2.

My System SpecsSystem Spec
18 Oct 2012   #32

windows 8.1 Pro x64

Quote   Quote: Originally Posted by karmoss View Post
Quote   Quote: Originally Posted by swarfega View Post
Found something that looks like we could stop it checking so much.

1. In Task Scheduler, go to Task Scheduler Library - Microsoft - Microsoft Antimalware
2. Select MPIdleTask, right click and choose properties
3. Go to the Conditions tab
4. Change the drop-down for start the task only if the computer is idle for... to whatever you wish (Ive changed mine to 1 hour so hopefully that'l mean itl end up checking the computer at night)

Of course you could disable this service but I suggest you leave it running but increase the interval. Certainly never actually delete the task entry.
My experience is that MSE restores the MpIdleTask if it is modified or deleted.

This is how I managed to get rid of MpIdleTask:

I created a scheduled task that deletes the MpIdleTasks with the following triggers:
-On an event: When MSE creates the MpIdleTask (see filter below)
-At startup
-At login

The event filter XML:

<Query Id="0" Path="Microsoft-Windows-TaskScheduler/Operational">
<Select Path="Microsoft-Windows-TaskScheduler/Operational">*[System[(Level=4) and (EventID=106)]] and *[EventData[Data[1]='\Microsoft\Microsoft Antimalware\MpIdleTask']]</Select>

The executed command (Action):
schtasks /delete /tn "Microsoft\Microsoft Antimalware\MpIdleTask" /f

The user should be SYSTEM, and disable everything in the conditions tab.

Bye-bye MpIdleTask !!!
lol I found this thread googling mpidle ressurection.

MSE is a nuts a/v now what the hell is it doing grinding my hdd everytime my laptop has been idle for 5 minutes, I left it alone for 40 minutes to see if it would settle down, it stopped after 30 and then started 5 minutes later, crazy. Also when I disabled mpidle it reenabled itself. A good a/v shouldnt need to forcefully keep redoing full scans. Also no good app should forcefully grind the hdd when machine is idle, a big no no for me.

I will try your trick if it works then many thanks, if no its bye bye MSE for me. When MSE v1 first came out I dont remember it behaving like this.
My System SpecsSystem Spec
18 Oct 2012   #33

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

Yes, I don't like the way MSE thrashes the disks, either.

Another reason why I use Avast- they do a free Home version.

Low resource usage, fast scans, constant updates.
My System SpecsSystem Spec

18 Oct 2012   #34

windows 7 home premium x64

I got rid of mse and put avast on my system....much better ...all down to personal preference i suppose ... Avast isnt a ram hogger nice bit of software
My System SpecsSystem Spec

 MSE thrashing disks after boot.

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