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How To Recover From The Main Hard Drive

To recover from your main hard drive you will need to set another drive as your temporary storage location. You will be prompted to select this location if you choose to scan your internal startup drive. Follow these steps to recover from your internal drive:

Step 1

Open Data Rescue.

Step 2

Select ‘Start Recovering Files’ from the Welcome screen.

Recover Internal Mac Drive

Step 3

Choose your main internal drive from the source list and click ‘Next’. For the best results we recommend choosing the physical device name rather than the volume name.

Choose Physical Mac Drive

Step 4

Choose either a Quick or Deep Scan for your device. Click either scan type to learn more about its uses, and click ‘Start’ when you are ready to begin your scan. You may receive a warning similar to the one pictured below. This warning will appear if your temporary storage location is invalid.

Temporary Storage Required

Step 5

The temporary storage location is a drive, or a folder on a drive, that is used during a scan to store persistent information found during a scan. A valid location must:

  • be located on a separate physical drive from the drive selected for scanning.

  • contain a valid Mac OS Extended file system (HFS+) with write-access (see below).

  • have enough free space to store information about the drive selected for scanning. This value is estimated to be 2% of the selected drive’s capacity.

If a location selected is not a valid Mac file system, Data Rescue can erase it so that it can be used as a storage location if it’s identified as “Erase Required”. In this situation you can select the location and click ‘Choose’. An Erase window will be displayed to confirm the operation. Once erased, you can go back and re-select the location once again.

Note: Erasing a volume will destroy all file data on it.

Once you have selected your temporary storage location press ‘Choose’ to begin your scan.

Step 6

Once the scan has completed, you can mark files and folders for recovery.

Recoverable MacOS Files

Step 7

Once you have marked files and folders for recovery, press the ‘Recover’ button in the lower right. You will then be asked to select a destination for your recovered files. This can be any location other than the device you have scanned, including your temporary storage location if it has additional free space.