Undelete External HDD Files on Mac

Requirements: Mac OS X 10.5.x and above (including Leopard, Snow Leopard, Lion, Mountain Lion & Mavericks)

Steps to Undelete Mac Files from External Hard Drive

Mac OS X is one of the most advanced OS introduced by Apple. It includes several useful features and has been designed using UNIX. It uses HFS, HFS+ file systems in order to arrange files on its hard drives. The Mac operating system has evolved with a number of different versions from a decade, and some of them are Panther, Tiger, Leopard, Snow Leopard, Lion etc. Even though Mac OS provides different safety steps to protect personal data, still data loss instances can take place in the Mac system. However a good Mac recovery software that can recover files from MMC card, SD card along with other types of memory cards and storage devices and help you to undelete external hard drive on Mac OS X.

Some common causes for deletion of data from Mac Operating System are as follows;

  • Improper method used during backup: Taking backup over a network or connecting an external hard drive using the AirPort Extreme which is not compatible with Time Machine results in data loss.
  • Data loss due to re-formatting a partition: Sometimes you may feel it is necessary to change from one file system to other file system on Mac i.e., from HFS+ to HFSX file system. Errors during the file system conversion can result in corruption of the partition.
  • Data loss due to re-partitioning the hard drive: When the size of an existing partition needs to be changed or a new partition needs to be created, re- partitioning can be done. Improper re-partitioning process might corrupt the existing partitions and results in loss of data.

The stored data in Mac system can also be lost due to various reasons like hard drive failure, file system corruption, power failure and software malfunction. You can follow some precautionary measures to avoid such data loss scenarios. Some easy steps that must be followed to overcome data loss are listed below:

  • Do not keep any volatile data on desktop computers.
  • Maintain backup of your important data regularly.
  • Use good quality power supply

The most important thing to remember when you want to retrieve files is to avoid using the drive from where you have lost files. This is because; if you continue to use the drive then the chance of recovery decreases severely.

Undelete Software for Mac is the best Mac Data Recovery Software which helps the user to retrieve Mac files from deleted, corrupt, formatted or lost Mac volumes quickly with the help advance built-in algorithms. It can recover files from formatted drive and volumes.It is a Universal Binary application, which helps you to work with both Intel and PowerPC Mac platforms. It has a very useful feature that helps you to find files from restored data list within few seconds using “Find-Tool”. It can also restore MOV files from MacBook Pro hard drive that is HFS+ or HFSX formatted. When you download and install any third party program or utility for recovery of data, make sure you do not do it on the affected Mac volume as it may overwrite the lost or the deleted files leading to permanent data loss. So, in order to restore the files you should connect your affected external hard drive to healthy Mac machine as a slave. The software can also undelete Mac files from FireWire Drives easily. Moreover, you can easily get back all kind of files such as audio, video, documents etc on Mac OS by using this efficieint tool.

Steps to undelete Mac files on external hard drive:

Step 1: Download and install the trial version of the software. Start the program by double clicking the desktop shortcut. The main window is displayed as shown in Figure a. Select “Recover Volumes / Drives” option from the main window.

Undelete Mac Files from External Hard Drive - Main Screen

Figure a : Main Screen

Step 2: When you select “Recover Volumes / Drives” option, a new window is shown. The new window gives you an option to restore deleted/lost partitions or to retrieve formatted/reformatted partitions. Select “Volumes Recovery” option and proceed to the next step as shown in Figure b

Undelete Mac Files from External Hard Drive - Volumes Recovery Selection Window

Figure b: Select Volumes Recovery Option

Step 3: When you select “Volumes Recovery” option, the software detects all the physical volumes and displays it as shown in Figure c. Select the drive from which you want to restore lost volume and click on “Next

Undelete Mac Files from External Hard Drive - Select Physical Drive

Figure c: Select Physical Drive

Step 4: Once you click Next” the software scans the selected volume and displays all the found volumes, as shown in Figure d. Select the volume from which you want to retrieve files/data and click on “Next

Undelete Mac Files from External Hard Drive - Select Volume

Figure d: Select Volume

Step 5: When you click “Next” you get an option to search for a particular file based on its unique signature by selecting the file type from the list that is displayed. Once you click on “Next”, the software starts scanning the selected volume and displays the recovered data as shown in Figure e

 Undelete Mac Files from External Hard Drive - Restored Files

Figure e: Restored Files


For Leopard (10.5) and
Snow Leopard (10.6) Users

For Lion (10.7), Mountain Lion (10.8),
Mavericks and Yosemite (10.10) Users