Fall Creators Update Resulting in High CPU Use By Service Host

Anonymous
2017-10-18T03:41:50+00:00

Hi,

After updating to the new version, I am seeing high CPU use from two processes:

Any ideas on how to make them not use a lot of CPU so that my laptop cools down and the fan stops blowing?

Windows for home | Windows 10 | Performance and system failures

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Anonymous
2017-11-01T23:47:18+00:00

Hi all, 

Had the same problem myself and found the solution which is quite simple :

Go to settings -> update & security -> Windows Defender -> Open Windows Defender -> Firewall & Network protection

Then you need to disable the firewall for all the types of networks

once that's done click on restore settings

That should do the trick and you're cpu usage should return to normal.

Hope it helps, it did for me.

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  1. Anonymous
    2017-10-31T10:14:18+00:00

    I dont have a high CPU usage but a very high CPU temperature after updating to FCU.

    Before FCU my i7 6700K @ 4.5GHz @ 1.3 V had an idle temp of 30°C and in games a max temp of 75°C.

    Now after FCU update I have 60°C in idle (CPU usage 1% so the CPU is not stressed at all but is hot already) and in games the CPU easily reaches 90°C (even in games where the CPU is stressed only 40%). Already got several BSOD because of too high temps.

    Whats causing this?

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  2. Anonymous
    2017-11-02T01:50:28+00:00

    Thanks Jean-Baptiste!  That fixed it for me.  I think I'd tried that before - but I only turned it off for one type of network (I assumed, wrongly, that it would turn it off for all).  Turning it off for all three - and then resetting has fixed the issue.  Superb.

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  3. Anonymous
    2017-11-09T16:45:04+00:00

    This actually worked!

    I've been having this problem after Fall's Creators Update whenever I turn on my Connectify hotspot.

    I think since there was a lot of under the hood improvements for Windows Defender, something went wrong and I hope MS releases the required patch soon enough.

    What the method of Jean-Baptiste does is restarting the Windows Defender Firewall protection. It's not a permanent solution since you probably are going to do it again after a windows restart, but it does the job for your current session.

    Thank you very much.

    Edit:

    It appears that this fix is permanent enough. Apparently the root of the problem is some kind of firewall rule and by this method you will restart Windows Defender Firewall protection rules.

    My problem after the first restart was actually ICS service getting turned on again (which is irrelevant to this fix.)

    Again, thank you Jean-Baptiste.

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  4. Anonymous
    2017-11-09T16:51:17+00:00

    Well I'm glad it worked for u too. Regarding this solution it is, at least for me, permanent since I restart my computer every morning and never had the issue back.

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