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. Counter Measure: Configure this setting depending on your organizations requirements. Potential Impact: Scanning can impact performance. 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