Mobile Clone - Advanced Setup Menu - DCO Check

A Device Configuration Overlay (DCO), is a partition on the hard drive that is not normally visible to an operating system. The DCO can report to the system that supported features are nonexistent or that the drive is smaller in capacity than it actually is.  Tap the RUN button to change this option’s setting.

Disabled	The system will not check for DCO partitions. Note: This is the Default setting.
Enabled	When DCO Check is enabled the duplicator will support Device Configuration Overlay configurations. When you duplicate a Source drive that contains a DCO partition, detect the DCO partition, unlock it, copy the area and then re-lock the area once duplication is complete.