Like any other Operating System, the Macintosh Operating system also includes logical drives or local partitions such as:
Common Reasons Causing Lost or Missing Partitions
There is always the situation happening that the file in Mac is lost, mistakenly deleted, or just missing. So do the partition. The partition in Mac also may be lost or deleted, which brings you a disaster of losing all files saved on it. There are some common reasons causing the partition lost:
Actually, to get back the lost partition is quite easy, just like 1-2-3, if you have chosen the right Mac data recovery tool. Recoverit data recovery for Mac is such a kind of simple program for everyone to retrieve lost partitions with only 3 steps. Let's take a try.
Download and install Recoverit on you computer. Launch it and follow the next steps to recover data from lost partition.
Step 1: Select a recovery mode. Click "Lost Partition Recovery" mode to start recover data from lost partition.
Step 2: Select the location to start scanning lost partition. Select your lost partition and click "Start" button to next.
Step 3: Scan the lost partition. It will start a quick scan to search data from lost partition. After the first scan, you can simple preview the specific recoverable files and get them back.
Step 4: If you cannot find your lost partition data, you can go to "All-Around Recovery" mode which will deep scan the lost partition but it will take quite a long time.
Step 5: Preview recovered files. After the final scan, you can check all recoverable files on the list, preview recovered files and click "Recover" button to get your data back.
Note: If you have an external hard drive connected with your Mac, the lost partition of the external hard drive will also be scanned out. So if you don't want to retrieve the lost partition of other hard drives, make sure they are not connected with your Mac.
After choosing the target partition, you can use the Filter Options to select the file types you are going to get back. As an advanced user, you also can set the specified region by the starting and the ending sectors. Then click Scan to recover all of the data inside the partition and save them on your Mac.
Due to macOS High Sierra (macOS 10.13) requirement, Mac users are not allowed an access to the built-in system drive from any apps. Therefore, if you need to restore lost data from the system disk under macOS 10.13, please "disable System Integrity Protection" first.
How to disable "System Integrity protection"? Please follow the steps below.
Step 1Reboot the Mac and hold down"Command + R" keys simultaneously after you hear the startup chime, this will boot OS X into Recovery Mode.
Step 2When the "OS X Utilities" screen appears, pull down the "Utilities" menu at the top of the screen instead, and choose "Terminal".
Step 3In the "Terminal" window, type in "csrutil disable" and press "Enter" then restrart your Mac.
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