Like any other Operating System, the Macintosh Operating system also includes logical drives or local partitions such as:
•HFS+ (Hierarchical File System)
•HFS (Hierarchical File System)
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:
• hard drive crash
• Viral attacks, power surge
• Uncertain system shutdown
• Software corruption
• File system corruption
The way to get the lost partitions back
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. Wondershare 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.
Install and launch it on your Mac. On the main interface, there are 4 options for you to choose from, and hit lost partition recovery, which can help you find the lost partition at first.
Then it will take quite a long time to scan for the lost partition, including all partitions that lost before. The retrieved partitions are not named as original, so you can decide which partition to recover by the size of it.
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.
Video tutorial of Mac partition recovery