Microsoft updates KB2999226

my wifes Laptop Toshiba. New updates last week 24/05/2018 removed a number of programs including Fsecure safe. when I go to Fsecure and start reloading the safe a message appears cant finish instalation update "KB2999226 is missing download this update. I go to microsoft and start to download KB2999226 and a message appears "not applicable to this device" What can I do.

Best Answer

  • VilleVille Posts: 494 F-Secure Employee
    Accepted Answer

    Hi @PaulN


    The exact reason for that error message is that your Windows is missing a file "ucrtbase.dll", 32-bit version of it. If you have 64-bit OS, it should be in %WINDOWS%\SysWOW64 folder. Otherwise it's in %WINDOWS%\System32 folder. On Windows 10 the file should always be there. For older Windows versions, the KB2999226 will install it.


    If the KB won't install, one option it to manually copy the file there from another Windows computer.



    (F-Secure R&D)



  • SimonSimon Posts: 2,605 Superuser

    You didn't say which version of Windows this is, but have you tried to uninstall the update?

  • nanonymenanonyme Posts: 145 Active Engager


    there's also a command 

    DISM /Online /Cleanup-Image /Scanhealth

    that can be run as admin to scan your operating system for corruption given new enough Windows (this is essentially a case of operating-system-level corruption) assuming you picked the installer for right operating system.

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