Can one prevent Antimalware Executable to start hogging CPU for extended periods each time some network adapter gets active?

Anonymous
2013-03-15T20:00:20+00:00

One of the most annoying habits in Windows 8 is, that the built-in "Antimalware Service Executable" (part of "Windows Defender") starts hogging my device's CPU with 60-70% (and 100% disk) for extended periods EACH AND EVERY time after I wake it up.

I wouldn't mind if it starts doing its business IN THE BACKGROUND but when I wake my device up from standby it's usually to get something done NOW and thus I find it increasingly unacceptable, that the system is always taken over by Window's defender exactly then and for up to several minutes! If I don't find a solution soon to throttle this beast, then I will disable Defender altogether!

What I noticed is, that this process seems to be actually triggered not by the system waking up, but by the network adapter becoming active. And actually, this happens each and every time ANY network adapter gets active! E.g. if my system has NO network connection at all and I plugin the network cable the Antimalware Service Executable starts. When - after it has settled again - I additionally enable Bluetooth then the Antimalware Service Executable starts its hogging business again. And if I then additionally enable the WLAN a few minutes later, it will AGAIN start to consume CPU!

So: can one decouple this? Running a scan ONCE after (re-)starting it is definitely enough, especially if Defender hasn't downloaded any new signatures since the last run! And, second, can one make Defender convince to strictly run in the background ONLY?

Michael

[Moved from Windows]

Windows for home | Previous Windows versions | Security and privacy

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  1. Anonymous
    2015-09-03T05:18:50+00:00

    Pls go through below link.

    http://www.youtube.com/watch?v=-NV45Mmn7TE

    my problem resolved after doing this.

    Thanks to uploader.

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  2. Anonymous
    2015-08-03T19:12:06+00:00

    Brilliant,

    Slightly different in Windows 10. Get to it the same way but you have to select properties on the pane on the right, then go to conditions tab and adjust setting to how you want.

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  3. Anonymous
    2015-06-30T13:48:13+00:00

    Hi Tejas,

    Thank you for sharing your part of query in Microsoft Community.

    However, as per the age of the thread, I would recommend creating your own thread with all the necessary information intact to get the issue resolved. This way your issue will get the needed attention and targeted assistance from experts all over the community.

    I would suggest you to refer to the following article for suggestions on asking questions on forums.

    ***Suggestions for asking a question on help forums***

    Hope this information is helpful.

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  4. Anonymous
    2015-06-11T23:08:23+00:00

    Thank you! By the way has the Antimalware Service Executive stopped hogging RAM for you?  It still is taking quite a bit RAM for me.

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  5. Anonymous
    2015-06-11T22:58:53+00:00

    I have the exact same issue and have no idea how to fix this.

    UPDATE: Sorry I did not see YinZhanChong's post, it has a fix. You have to right click on windows defender and then select properties and then conditions and then uncheck all of the boxes. Even though I have unchecked all of the boxes antimalware service executive is still hogging a lot of ram.

     YinZhanChong's post: 

    "I think i found the solution, when you all reach to the "window defender", on your right tab there are properties, click it

    and go to condition, idle, power, and network these three will be allowed to uncheck?

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