This policy setting allows you to configure scanning mapped network drives. If you enable this setting, mapped network drives will be scanned. If you disable or do not configure this setting, mapped network drives will not be scanned. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Windows Defender\Scan!Run full scan on mapped network drives (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Scan!DisableScanningMappedNetworkDrivesForFullScan