Note: If you need to recover files from the system disk of your operational Mac computer, read our article: The best way to recover files from a Mac system disk
Note: You cannot use this program to work with Mac computers based on Apple Silicon.
Even a Mac user sometimes can find that his or her computer doesn't start anymore. Its hardware seems to be functioning, but the computer isn't operable anymore. Quite often that may happen after an unsuccessful system update or system crash.
The Mac system provides a system recovery option, but such operation may permanently destroy user's files, such as family photos, music collections, important documents, as so on. So, it's a quite reasonable step to recover such files before recovering the system. Such procedure is called an "emergency recovery" and can be performed using special recovery tools like R-Studio Emergency.
This article will give you step-by-step instructions on how to perform such emergency recovery and save your endangered files. In addition, you may use R-Studio's on-line help if you need some more information.
Also you don't have to buy R-Studio immediately to start recovering files. You may do most actions in its Demo mode except saving recovered files. When you have enough reasons to believe that you will be able to recover files successfully, you my buy R-Studio and register it without interrupting the file recovery process.
Preliminary Steps
Before we begin we need to do some preliminary steps:
First, we need to find place to store recovered files. You may use the following devices:
Then we need to create an R-Studio Emergency startup disk.
Using a Mac Computer
Download the ZIP archive of R-Studio Emergency, unzip it, and write files to a FAT32-formatted USB device.
Please note that you cannot use this disk to start non-EFI computers (old Macs, for example), nor can you just copy those files to a CD/DVD disc to create an R-Studio Emergency startup disc. If you need a CD disk, burn it using the ISO image.
Using a Windows Computer
You may create a USB startup disk for R-Studio Emergency using a Windows Computer. See R-Studio on-line Help: Creating Startup Disks for details. That disk can be used to start any computer.
Now we can start the file recovery procedure:
Starting a Mac computer with R-Studio Emergency
1. Connect a USB disk.
2. Switch the Mac on
3. While loading, keep the Option key on the Mac keyboard pressed (the Alt key if you use a non-Apple keyboard).
The Options key
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4. Select the EFI boot disk and press Enter.
The R-Studio Emergency startup disk
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R-Studio Emergency will start loading.
5. Select R-Studio Emergency GUI (Graphic Mode)
The Startup Options screen
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Wait until the R-Studio Emergency Demo Activation dialog box appears.
Activation screen
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You don't have to enter the activation code immediately; you may click the Cancel button and work with R-Studio Emergency in its Demo mode. In this mode, you may perform all file recovery actions except saving recovered files.
The Main panel of R-Studio will appear.
R-Studio's Main panel
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File Recovery
If R-Studio has recognized a file system on the partition, just double-click it to enumerate the files. When the file/folder structure appears, navigate to the Users folder, and mark folders and files for recovery.
Files marked for recovery
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Searching for and marking files for recovery
You may do that in several ways:
You may estimate the chances of recovering files by using the built-in graphic previewer. Just double-click a selected file, be it a deleted or existing one. The previewer supports most graphic formats.
File previewer
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If you've found all the files that you want and are satisfied with their preview results, you may activate your R-Studio Emergency if it's running in the Demo mode. That will not affect any obtained information; you may continue file recovery right after entering the Activation Code.
Once you've selected all files to recover, click the Recover Marked button. The Recover dialog box will appear:
Recovery dialog box
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See the R-Studio on-line Help: Recover options for more details.
Specify the recovery options and output folder to store recovered files.
Output folder for recovered files
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When all file recovery settings are specified, click the OK button. R-Studio will start file recovery showing its progress.
File Recovery Progress
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The Log panel will show results of file recovery.
File recovery results
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Scanning the disk
If R-Studio cannot find the partition with the files you want to recover, you need to scan the disk. Disk scan is also required to recover deleted files because when macOS deletes files it deletes all information about it.
When the scan is finished, R-Studio will show you one or several recognized partitions so you can choose the right one and recover files from it as it's been described in the File recovery from an existing partition section.
To scan the partition, right-click the partition to be scanned and specify the required scan parameters on the Scan dialog box.
Scan dialog box
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See the R-Studio on-line Help: Disk Scan for more details.
Scanning for Known File Types
This is a very useful feature for file recovery from deleted or reformatted partitions. While scanning, R-Studio can recognize to which particular file type the data belong. Using that information, R-Studio can find more files to recover. Those found files appear in the Extra Found Files folder in the scan result.
Known File Types dialog box
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By default, R-Studio tries to recognize the default list of supported file types, increasing time required for the scan. You may reduce it by selecting only those file types that you need. Click the Known File Types... button and select the required file types on the File Types dialog box. These selections will be applied to that scan session only.
You may create your own known file types if necessary. Read the Creating a Custom Known File Type for R-Studio for more details.
When you're ready with the scan parameters, click the Scan button. R-Studio will start scanning. When it finishes the scan, it will show the recognized partitions it's found on the disk.
Scan results
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R-Studio shows them in different colors depending on which elements of the partition have been found.
This represents an existing logical disk or partition. | |
Both boot records and file entries are found for this partition. | |
Only file entries are found for this partition. | |
Only boot records are found for this partition. | |
This represents the empty space on the object. |
To successfully recover files from a recognized partition, it is necessary to find one that corresponds correctly to the real logical disk on which the files resided. No strict rules can be applied to that, but the following tips should be taken into account:
Also, always check the recognized partition's file system, start point, and size. These characteristics should be the same for both the recognized partition and real logical disk/partition. When in doubt, try to preview a couple of files from the recognized partition. If the files are seen correctly, this is the right partition.
In our example, we have only one Recognized0, so the choice is easy. Just double-click the partition and recover the files as we did that for the existing partition.
Computer Shutdown
When you finish file recovery, remove the USB disk, and turn your computer off manually.