We are committed to providing fast, efficient, and affordable software solutions that set new standards in the software development industry.
  • The best way to recover files from a Mac system disk

Hard drives in Mac computers are almost always partitioned in a such way that there is only one partition that stores the system and user files. There are two problems when when recovering files from a Mac system disk:

  • System Integrity Protection introduced into macOS since OS X El Capitan. It blocks unauthorized programs from deep access to the system disk. Although that indeed protects Mac computers from various malicious software, it also prevents many file recovery programs from doing their jobs - file recovery.
  • Program installation which requires large data copy to the disk where the lost files were located. This data may overwrite lost files rendering them unrecoverable.

R-Studio for Mac overcomes these problems. Apple has authorized full access for R-Studio for Mac to the protected disk(s), and it can be started from an external device without copying anything to the system disk. This article explains how to utilize these features for file recovery from the system disk of a Mac system.

Use another computer to download and write the installation file to a USB disks. This computer may not necessarily be a Mac computer, it may as well be a Windows or Linux machine. If the USB disk is large enough, you may store recovered files on it. It should be formatted as a FAT32 device, or, if you're going to store files larger than 2 GB, as an exFAT device.

File recovery
1. Connect the USB disk to the Mac computer with the lost files, open it, and double-click the RStudio*.dmg file.

USB disk with R-Studio installation file

Fig.1. USB disk with R-Studio installation file

Click image to enlarge

2. The installation window will appear.

R-Studio installation window

Fig.2. R-Studio installation window

Click image to enlarge

Double-click the R-Studio for Mac icon rather than drag it to the Application folder.

3. When you start R-Studio for the first time a System Extension Blocked warning message will appear.

System Extension Blocked warning message

Fig.3. System Extension Blocked warning message

Click image to enlarge

At the same time R-Studio will throw its own message:

R-Studio warning message

Fig.4. R-Studio warning message

Click image to enlarge

If you need access to your system disk, click the Open Security Preferences button on any of the messages, go to the Security and Privacy preferences, and click the Allow button.

Security and Privacy preferences

Fig.5. Security and Privacy preferences

Click image to enlarge

You need to follow this procedure only once, next time R-Studio for Mac will start without this message.

4. R-Studio will start with full access to the system disk.

R-Studio with full access to the Mac system disk

Fig.6. R-Studio with full access to the Mac system disk

Click image to enlarge

5. Double-click the system disk and go to the files on it.

Files on the Mac system disk

Fig.7. Files on the Mac system disk

Click image to enlarge

You may recover files from it as if R-Studio for Mac was installed on the computer.

Mac Recovery Feedback
26 feedbacks
Rating: 5.0 / 5

I used some software for data recovery on MAC, but THIS IS only one, that help me!!!

THX :)

Tom from Hungary
Consiglio vivamente, R Studio Mac è un programma eccezionale, grazie ad esso sono riuscito a ricostruire un Raid 0 (striped) e ho recuperato 4 TB di files che credevo persi. Avevo provato anche con altri SW ma senza risultato!! Grazie
Made the classic mistake of working too hard with too little sleep. Working on my own stuff so I didn`t take the precautions I should have.

Needless to say a RAID0 set created using Apple`s Disk Utility was broken and formatted as a new RAID0. I immediately recognized my mistake and shut down the server.

After some web surfing and saki I found R-Studio.

After the other utilities I normally use failed, R-Studio was able to create an image of the broken (and reformatted) RAID disks.

The entire volume ...
5+ Я мог восстановить RAID-5 20TB для мака. Это пожалуй лучшее решение по восстановлению RAID массива. Всем рекомендую.
5+ I was able to repair my RAID-5 for Mac volume to 20 TB - it`s the best solution. I would recommend.
I would just like to thank you for an excellent product. I was able to recover nearly a terabyte of data after a raid 6 array failed. My customer was ecstatic over the results