Common Situations That Cause MacBook Data Loss:
If you have lost important files or folders due to any of the accidental operations above, you still can get them back; with the help of third-party mac data recovery software. To choose the right data recovery tool, be positive that it supports recovery of data deleted, formatted or emptied from Trash. If you're still looking for the right software, I humbly reccomend Recoverit for Mac, which enables you to recover Mac files, no matter you lost them due to any situation above.
Free download Recoverit for Mac on your Macbook, with it you can easily and effective to recover deleted, formatted & trashed files from Mac. Follow the next simple steps to perform MacBook file recovery.
There is one thing that you shoud pay attention is that: Don't save the recovered files on the orginal place again. Find another partition or external disk to store them, for safety consideration.
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 restart your Mac.