What Is Windows 10 Antimalware Service Executable?

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Antimalware Service Executable may raise questions if you spot it among the processes when you check your Task Manager in Windows 10. A persistent presence, it starts itself if you try to disable it from your Task Manager.

It is quite lightweight, though, and does not consume many resources, or memory. However, once in a while it might show a sharp increase and then an equally sudden drop in resource consumption. It usually happens when your system is idle.

Fear not; Antimalware Service Executable is Windows Defender, which is a constant presence in Windows 10. It scans the files you download, but other than that it tends to remain relatively passive. Whenever it detects the system is idle, for example when you are reading, it might take advantage of that time to run a routine check of your system.

You can hide Windows Defender icon from your system tray if you wish to:

open SettingsPersonalizationTaskbar tab → scroll down to see the Notification area → click Select which icons appear on the taskbar → turn off the Windows Defender icon.

That way, Windows Defender keeps working and scanning your system, sending you security alerts now and then, but you will not see its icon in your system tray.

How to disable Antimalware Service Executable

As I said, Antimalware Service Executable starts itself back on when you disable it via Task Manager. It is a Windows process, so you can not turn it off. Microsoft has made it to ensure the security of your system, and disabling it is not recommended. Windows Defender is your basic protection, so unless you install a proper antivirus program, you should not disable it. If you do have an antivirus, you can disable Windows Defender and its Antimalware Service Executable.

You need to edit the Windows Registry to disable the Antimalware Service Executable. So:

open the Windows Registry → go to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender

Find DisableAntiSpyware and DisableAntiVirus → double-click to edit → set the value to 1.

In case you find only one of the above files, set its value to 1 anyway.

In case you there none of the keys are present → right-click → add a new key DWORD 32-bit → name it DisableAntiSpyware → set its value to 1.

Voilá!