This computer does not have that many disks.
During RAID reconstruction the number of component drives must be less than or equal to the actual number of active physical drives on the computer. A RAID 0 can only be reconstructed from at least two disks. A RAID 5 requires three disks. If the number of physical drives on the computer is lower than the minimum, File Scavenger will display this error.

If a RAID is being reconstructed from disk image files, the files must be loaded (using the commands File, Disk Image and Load) prior to reconstruction. A loaded disk image file is equivalent to a physical disk.

Unable to access registry key.
A required Windows® registry key cannot be accessed. This error may indicate a potential problem with the Windows® installation.

Unable to access the disk.
The floppy disk cannot be accessed due to physical media errors.