This policy setting allows you to enable download of definition updates from Microsoft Update even if the Automatic Updates default server is configured to another download source such as Windows Update.If you enable this setting definition updates will be downloaded from Microsoft Update.If you disable or do not configure this setting definition updates will be downloaded from the configured download source.
Policy path:
Windows Components\Windows Defender\Signature Updates
Scope:
Machine
Supported on:
At least Windows Server 2012 Windows 8 or Windows RT
Registry settings:
HKLM\Software\Policies\Microsoft\Windows Defender\Signature Updates!ForceUpdateFromMU
Filename:
WindowsDefender.admx