Find the line named 'Windows Defender notification icon' as shown below:.
See how to create a shortcut to manage Startup apps in Windows 10. Tip: You can open the Startup tab of Task Manager directly in Windows 10 by running the following command: taskmgr /0 /startup To disable Windows Security tray icon, do the following. To remove MSASCuiL.exe/SecurityHealthSystray.exe from startup, we will use the methods described in the article How to add or remove startup apps in Windows 10. This operation has no side effect and will disable the tray icon completely. To get rid of the icon, you can remove the helper tool from startup. This file runs at startup when you sign in to your Windows 10 account and so the icon appears in the tray. Now it is C:\Windows\System32\SecurityHealthSystray.exe Update: Starting in Windows 10 version 1809, the helper tool has got renamed. It is located here: 'C:\Program Files\Windows Defender\MSASCuiL.exe' There is a helper tool which draws the icon.
