How to fix when macOS High Sierra freeze or crash during installation?

How to fix when macOS High Sierra freeze or crash during installation?

How to fix when macOS High Sierra freeze or crash during installation?

This is a simple short instruction on how to fix when macOS High Sierra freeze or crash during installation. Before you do anything, do make sure, be 100% certain that the installation isn’t still running in the background. Rebooting by force during an installation will cause the installation process interrupted and potentially to lose ALL data.

1. Is your mac really frozen?
Before you conclude, check the following;

Updating software can take long. It somewhat looks like a frozen update, but after a few hours it’s actually at the end stage of its task. Consider leaving your Mac overnight to complete the task that it had started. Updates may take more than 12 hours or more.

2. Check to see if your Mac is installing OS X
To do this, Press Command + L. This brings up information and details such as the amount of installation time remaining, an indication of what files are being installed and the amount of time left for you to observe and take note of.

3. Wait
Do wait for a couple of hours more if it indicates that the installation hasn’t stalled so be patient.



After all the above procedures you had gone through and you’re positive that your Mac isn’t still working; do run the following steps:

Using the Recovery Mode to reinstall macOS.

There are multiple ways to “wake up the mac” but I will go through the most if not better chances of success to do it by using the Recovery Mode to reinstall macOS.

1. Press and hold the power button to shut down and start your Mac back up.

2. Hold down Command + R on your keyboard immediately at start up, it should bring you in Recovery Mode
There are a number of options here – recover your Mac Time Machine, perform a disk repair, re-install macOS’ option.

3. Select re-install macOS. When it reinstalls, your Mac will replace all system files and will overwrite the corrupted segments contributing to the error of not starting up.

Thats it, good luck, hopefully you are able to reinstall your new macOS correctly.

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