In such cases, you can reinstall the OS and check if the issue resolves.
If your Mac is not booting, there is a possibility that something went wrong with the installation process.
Solution 3: Reinstall Mac OS from recovery mode If this doesn’t help, proceed with the next step. If the repair is successful and your Mac starts in Safe Mode, you may be able to boot normally. Please note that this may take a while as the repair process takes place in the background. When you see the Apple logo, release the Shift key and wait for your Mac to start in Safe Mode.
To boot your Mac in Safe Mode, restart your Mac and when you hear the start-up chime, press the Shift key. Safe Mode in Mac repairs issues with your start-up disk and directories.
Step 2: Quick Methods to Fix ‘Mac won't boot after High Sierra upgrade’ Solution 1: Reset SMC on your MacĪn upgrade to High Sierra may have changed certain default values and settings on your Mac. Now that you have your data recovered, you are all set to proceed with the troubleshooting steps to resolve your Mac’s booting issues.
Note: The software works with all versions of Mac OS 10.5 and above. Preview the files if necessary and save them to a preferred location This is useful for continuing the recovery process at a later time. Note: You can choose to save the scanning progress so far by clicking on Save Recovery Session. Select Normal Scan for the software to scan the volume and list all available files Select the desired drive and then select the volume from which you’d like to recover dataĤ.
Then select Volume Recovery from the 2 options listed: Volume Recovery and Formatted recoveryģ. Launch the software, select Recover Volumes or Drives in the main screen and click NextĢ.
Then download and install Remo Recover Mac on the healthy system and proceed with the recovery process using the steps below.
Mac OS X 10.6 - Snow Leopard Easy Steps to backup / recover data from unbootable Mac using Remo Recover Macįirst remove your unbootable Mac’s hard drive and connect it to a healthy Mac. Follow the below explained steps to backup & recover data from a not booting mac after High sierra Update. It’s better to secure your data before you go ahead. As some of the troubleshooting methods may delete data from your system. Step 1: Recover data from not booting Mac using Remo Recover Macĭownload Remo Recover (Mac) tool and recover data first before performing any fixes. Read on to learn about simple and effective solutions to resolve this problem. Before you proceed with the fixes, make sure to backup / recover data from your un-bootable Mac using Remo Recover, as there are chances of losing your data. In this article, let us discuss about methods to fix ‘Mac not booting after a High Sierra upgrade’ error. There are also complaints w.r.t installation errors such as Mac won't boot after installation, Mac grey screen of death error or getting stuck on the installation screen for hours etc. Upgrading to High Sierra has left many users unsatisfied with common complaints about security flaws, slow system, frequent system freezes and so on.