F-Secure Host Process 100% CPU W10(1803)



After installing of 1803 F-Secure got really mysterious.

When I start my Computer F-Secure Host Process (Exactly the Service F-Secure Ultralight Hoster) run with 100% of CPU. So i have a little bit time to restart my PC and then when Windows comes back it works normally.


It only happens when my PC is starting from power off mode. After the restart in Windows everything works fine again.




Does anyone have the same problem???


Accepted Answer


  • Hello


    I have similar problem, but in addition to CPU also disk I/O acitivity for F-Secure Host process is high capturing big part of capacity which leads computer to lag.


    System is Windows 10 (Microsoft Windows [Version 10.0.16299.431]) and F-Secure Virus Protection

    17.211.122, usage control 2.211.7392.4091 and Common Component Framework 3.11.269.


    Temporary solution was to stop running services of F-Secure and starting Windows Defender.

  • Yeah you right I think. The problem comes from the fastboot.

    I disabled it in BIOS and the problem wasnt there anymore.

  • AmrunAmrun Posts: 2

    Got the same problem. Win10, F-Secure TOTAL.

    Disabled fast boot for now.

    Would be nice if F-Secure could fix this.

  • Mike21Mike21 Posts: 1

    I agree. F Secure why cant you fix this. Im paying for protection that just frustrates me.

  • Me too. Where I can send the bill for they to return my money!!

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