The list of drives in the Logical Drive Information Display screen usually contains the names of physical disks, logical drives and un-named, Unallocated space. If a partition is damaged, however, it will be identified as the type Unknown. Contents of an Unknown partition cannot be displayed, nor can it be processed by Active@ UNERASER.
The utility understands that there is an existing partition, but as it cannot be certain what is in that space, it cannot scan it or otherwise inspect the space further.
To repair this problem, instruct the utility to bypass information in the Master Boot Record (MBR). For more information on MBR, please see the next section "Backing Up MBR, Partition Table and Boot Sector", below.
Here are the steps: