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.

1. Registry path is:

   HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows Defender -> Scan # DisableScanningMappedNetworkDrivesForFullScan

2. The Administrative Template path is:

   Windows Components -> Windows Defender -> Scan

* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.

** To locate the registry and administrative template path, checkout beginner's guide.