If the drive fails to show up in Disk Utility, this means that the computer does not detect the presence of the drive, and no software will be able to access it either. You can double-check that the drive can be seen by your computer by using Disk Utility to see if it can detect the drive. In this latter case, you might try some or all of the following things to see if your device can be made to appear: Double-check the drive cables and power source remove/reattach the drive and/or power cycle it power down and restart your computer. In this case, no software will be able to scan your device.

Finally, it could be possible that your drive is malfunctioning to the point where your computer is not able to talk to it at all, in which case even the device name will not appear. If that is the case, you will need to choose the device name for scanning rather than the volume. Or it may be that Data Rescue can see the device, but is not able to recognize a volume structure on the device. If the volume you are looking for still does not appear, it may be because Data Rescue is unable to find the correct name for it, in which case it may show some other name such as unknown for the volume name. Try the File -> Refresh Drives List menu item. If you have attached a drive with a damaged volume since you started Data Rescue, Data Rescue may not automatically notice it. This data can be found in the ‘Reconstructed Files’ folder in the results of a Deep Scan. When files are deleted, their location on the hard drive is marked as available free space and until that location is overwritten with new files, the raw data may be recoverable. This is because the metadata for the file, which includes filename, folder location and other information about the data, is lost. The reason for this is because when files are deleted, the link between the raw data on the hard drive and the filesystem is broken. If you are attempting to recover files that were deleted or files from a formatted hard drive, generally the filename and folder structure are not going to be recoverable. This data will be found in the ‘Found Files’ folder in the results a Quick or Deep Scan. If you are attempting to recover from a drive that is failing to mount and cannot be accessed through Mac OS, or from a system that will not boot, it is possible to recover folder/file structure since the data is still fully intact in most cases. The possibility of recovering data with it’s original filename and folder structure depends on the specific recovery scenario.

Will this recover data with its original name and in its original sub-folder formatting?

Data rescue 4 mac