Bug reports connected to the following components of Home and Small Office products are received in this topic:

— Standard Windows installer tasks (install/delete, Force Update);

— Migration: KFA <-> KAV <-> KIS <-> KTS;

— Bases update.


Please write in this topic only about the problems that suits the list of components!

General requirements for bug-reports are written in Section 2 of testing guide.


All inappropriate messages will be deleted!

  • Reproduction steps:

    Cannot install latest beta (b318) on Hyper-V guest (W10 17134). Hyper-V host is also W10 17134. I'm getting Application installation error. KTS 2019 install fine on the same virtual machine.

    Install logs are here:


    Actual result:

    KTS2020 should install fine on virtual machine

  • Real system:

    Windows 10 64-bit, Version 1803

    KIS de app + drv verifier enabled

    Reproduction steps:

    Run an update.

    Actual result:

    2 avp.exe remain after update is finished.

    Expected Result:

    1 avp.exe should remain.

  • Real system:

    Windows 10 64-bit, Version 1803

    KTS de app + drv verifier disabled

    Traces set to important only

    Related to the topic i posted about 2 avp.exe processes running.

    I noticed the when i start up KTS there will be 2 avp.exe processes started and keep running and when i run an update a third will be started and keep running event after the update is finished.

    I recorded dumps manually with 3 avp.exe processes runing and added some traces from starting KTS up and closing KTS again and starting KTS up again .

    Taskmanager screenshot (hostet on imgbb.com/ibb.co)

  • Reproduction steps:

    Install KIS2020.0.0.418 en-us on win10

    Actual result:

    Install failed

    Expected Result:

    Installation is success, product loaded normally

    OS: Windows10 Enterprise 2016LTSB 14393.2248 x64

    Product Build: KIS2020.0.0.418 en-us

    This OS is just newly installed, with few third party software.

    but I can not install avp, I have tried twice. Got same error code.


    GSI6, install logs, error screenshot


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