Mac File Recovery from HFS+ Partition

HFS+ file system is also referred as Mac OS Extended, which replaced the older HFS file system as the default file system for Macintosh from Mac OS 8.1. Even though there are many similarities between HFS+ and HFS. However HFS+ provides many enhancements over HFS i.e. the way how information is stored and maintained.

HFS+ includes enhancements like Unicode for naming files, increased file size up to 16 TB, permits file names up to 255 characters in length, journaling feature, file system compression, access control, encryption etc. But most important improvement among all of these was; that it uses 32 bit allocation blocks unlike the 16 bit in HFS. This allowed Mac to address 4,294,967,296 allocation units, hence supports much larger files and also saves significant amount of storage space.

Let’s see the scenarios that leads to data loss from a HFS+ partition

  • Human Errors – Mistakes like deleting a file, deleting bunch of files, emptying Trash, formatting a HFS+ volume etc, which are done intentionally or unintentionally causes data loss on your Mac OS X
  • Volume Header Corruption – Since, volume header holds all the details regarding the Mac volumes like size of the allocation blocks, date & time of volume creation, location of the volume, size of the volume etc. Therefore corruption to volume header will make your HFS+ volumes inaccessible
  • Catalog File Corruption – The catalog file keeps record of all the files and directories that are present in the volume. Hence catalog corruption will deny access to all those files and directories
  • Operating System Crash – Operating system crashes are a common problem which may occur at any point of time and due to several reasons (e.g. virus attack). This may lead to deletion of your HFS+ partitions present on your Mac machine
  • Power Outage – Frequent power outages results in improper system shutdowns, which may cause bad sectors in the hard drive and may also lead to OS crash in worst cases

What to do after losing data from your HFS+ partition?

If you have lost important data from your HFS+ partition or lost the entire partition, due to any of the above mentioned scenario; do not assume that it is lost forever. Because you can still get back your vital data by utilizing a third party recovery tool, as the data is still at hand.

Yodot Mac File Recovery is one of the highly suggested recovery tool. Our software makes use of block scanning technique, which can recover more than 300 different file types from your HFS+ partition / volume. It also offers more than 50 features which makes recovery simple and easy. Most importantly it’s highly capable in handling files of much larger size. This tool is safe to use on all Mac OS X versions starting from OS X 10.5

Apart from HFS, Yodot provides another tool powerful enough to undelete NTFS files, lost data from FAT and exFAT file extensions on Windows OS effectively.

Directions for recovering files from HFS+ partition

  • First of all, you need to download Yodot Mac File Recovery software to your Mac, but not to the affected volume / partition
  • Then install it and follow the instructions that are appearing on-screen
  • The main screen shows two options "Deleted File Recovery" and "Lost File Recovery"
  • Choose "Deleted File Recovery" option for recovering deleted files and select “Lost File Recovery” option for retrieving files after formatting, partition deletion, OS corruption, catalog file corruption, volume header corruption etc.
  • Now, the software will show all the volumes / partitions present on the Mac hard drive
  • Choose the HFS+ partition from which files are to be recovered
  • The software will scan the entire partition / volume and will display all the recoverable files
  • Choose the desired files from the list, which you need to recover and then click "Next"
  • Choose the destination location for saving the recovered files


  • Its highly recommended not to use the partition after any kind of data loss, as this will rewrite the data making it difficult for recovering
  • Try to keep regular backup of your important data
  • Make use of powerful antivirus software for your PC / laptop