This policy setting allows you to configure scanning for network files. It is recommended that you do not enable this setting.If you enable this setting network files will be scanned.If you disable or do not configure this setting network files will not be scanned.
Policy path:
Windows Components\Windows Defender\Scan 
Scope:
Machine 
Supported on:
At least Windows Server 2012 Windows 8 or Windows RT 
Registry settings:
HKLM\Software\Policies\Microsoft\Windows Defender\Scan!DisableScanningNetworkFiles 
Filename:
WindowsDefender.admx 
