Windows 10: MSASCuiL.exe is missing or deleted ?

Discus and support MSASCuiL.exe is missing or deleted ? in AntiVirus, Firewalls and System Security to solve the problem; Hello Unfortunately, I made the mistake of installing Malwarebytes antivirus, an error that I regret because afterwards it has not allowed me to... Discussion in 'AntiVirus, Firewalls and System Security' started by Kentsfield, Mar 25, 2020.

  1. MSASCuiL.exe is missing or deleted ?


    Unfortunately, I made the mistake of installing Malwarebytes antivirus, an error that I regret because afterwards it has not allowed me to uninstall it. Then I have half-managed to uninstall it and the rest manually. The biggest problem is that later I saw how Windows security center had been "broken" by Malwarebytes. and then it also gave me an error code when updating the definitions.

    error definitions update failed with a code number .

    After a restart apparently Security center has recovered . But now looking at the startup processes, it tells me that there should be a file called MSASCuiL.exe, which I have seen has disappeared. But I'm not sure if it was there before installing Malwarebytes.

    Please can someone tell me if in Windows 10 1909 there must be a file called MSASCuiL.exe , in ProgramFiles\Windows Defender \ directory?

    Because on the other hand I just recently read on another site that after Windows 10 1803 version MSASCuiL.exe and MSASCui.exe has been removed and replaced with others files. it is right ?

    Thank you so much

    Kentsfield, Mar 25, 2020
  2. Martmcd Win User

    what is MSASCuil


    where are you seeing MSASCuil?

    which version of windows 10 are you running?

    settings -> system -> about

    what is listed under windows specifications?

    msascuil (Microsoft Antivirus Security Centre User Interface Logo) was responsible for the icon appearing on the taskbar system tray, but apparently was later incorporated into the windows security health service and SecurityHealthSystray.exe.
    Martmcd, Mar 25, 2020
  3. HARILAXMI Win User
    what is MSASCuil

    what is MSASCuil ,what happens if it is disabled
    HARILAXMI, Mar 25, 2020
  4. Bree Win User

    MSASCuiL.exe is missing or deleted ?

    Missing Startup Software

    1803 was the last version to include MSASCuiL.exe and MSASCui.exe, they were removed in 1809 and all later versions.

    The purpose of MSASCuiL was to display the old Defender icon in the taskbar, while MSASCui was the old Defender UI.

    Neither are needed (or will work) in 1809 or higher. In fact, attempting to run the old MSASCui.exe from 1803 in any recent version of W10 will now just open the Windows Defender Security Center.

    A leftover for a previous version after updating it? It is not needed as your Startup list also has the item that's now used in place of MSASCuiL, the 'Windows Security notification icon'.

    It is safe to delete the MSASCuiL startup entry from the registry (if that's where it is). It may not be a registry entry, it may be a shortcut in your %appdata%\Microsoft\Windows\Start Menu\Programs\Startup folder. Early versions of W10 did not show the taskbar Defender icon by default, it was common practice for users to put a shortcut there to make it show on the taskbar.

MSASCuiL.exe is missing or deleted ?

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