How can I recover lost data after upgrading from El Capitan to macOS High Sierra? Yesterday I upgraded my Mac OS from 10.11 EI Capitan to the macOS High Sierra. However, some documents were missing after update. And I don’t have a Time Machine backup. How can I get them back? - From Carter.
MacOS High Sierra which brings some important changes to the way you use your Mac was released in September. And many Mac users have lost their photos, videos and other documents during or after upgrading Mac to macOS High Sierra. However, data loss which makes you upset is one of the most common problems after macOS High Sierra upgrade. Actually, downgrading from macOS High Sierra to El Capitan also could cause data loss. Here below, you’ll find effective solutions to recover lost Mac data after macOS High Sierra upgrade or downgrade.
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Free downloadBefore you get all your lost data back, you should not put new data to your Mac in case that the lost files would be overwritten by new data. If you will update to macOS High Sierra, please make a full preparation before updating to macOS High Sierra. Thus you will minimize data loss possibility.
If you have created Time Machine backup before macOS High Sierra upgrade or downgrade, you can restore lost or missing data from Time Machine backup.
You can also use the timeline on the edge of the screen to see the files in your Time Machine backup as they were at that date and time and use the onscreen up and down arrows to jump to the last time the contents of the window changed.
If you haven’t created any backups for your Mac data and you lost it after updating to new macOS High Sierra or downgrading to El Capitan, then you’ll need to follow below guidance to recover them without backup.
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In macOS 10.13 High Sierra, a significant feature called "System Integrity Protection" (SIP) is introduced and enhanced, which prevents malware from modifying protected files and folders on Mac.
SIP also intervenes when third-party safe apps are trying to gain access to system disk or partition. So before you use Cisdem Data Recovery that is 100% safe and clean to perform data recovery under macOS 10.13, you need to temporarily disable SIP.
Step1. Reboot the Mac and hold down "Command + R" keys simultaneously after you hear the startup chime.
Step2. When the "macOS Utilities" screen appears, click "Utilities" in the menu bar, and choose "Terminal".
Step3. In the "Terminal" window, type in "csrutil disable" and press "Enter" then restart your Mac.
And you can also turn on SIP after recovering data on macOS High Sierra. To enable SIP, just follow above steps and type in "csrutil enable" in Terminal.
Upgrading to a new OS might wipe out your data completely. Another option that you can consider is to partition your hard drives and opt to install the new OS in one of the partitions. Even though you can rely on powerful data recovery software like the Cisdem Data Recovery for Mac, make it a habit to back up your Mac in order to be prepared for any data loss situations.
2017-11-28 22:34:09 / Posted byPeter William to Data Recovery Mac Follow @ Peter
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macOS Sierra is available for several days, you will be fascinated by its new features and now learn the tips to get and install macOS Sierra on your mac.
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2 Responses
I found many files missing after mac os sierra upgrade, and I didn't backup them to somewhere, I tried this data recovery, it found them on my Mac hard drive, thanks a lot.
1 years ago REPLYLosing data after mac os upgrade or downgrade is not very much common if the user operate correctly I think. But it is indispensable to always keep a data recovery in hands. I do have one.
2 years ago REPLYLeave a Reply