Turn on scan after signature update

This policy setting allows you to configure the automatic scan which starts after a definition update has occurred.If you enable or do not configure this setting a scan will start following a definition update.If you disable this setting a scan will not start following a definition update.

Policy path: 

Windows Components\Windows Defender\Signature Updates



Supported on: 

At least Windows Server 2012 Windows 8 or Windows RT

Registry settings: 

HKLM\Software\Policies\Microsoft\Windows Defender\Signature Updates!DisableScanOnUpdate



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