Really helpful, right? Here’s what you should do: That means it can isolate incompatibility software that makes your Mac unbootable. Safe mode can determine whether an issue is caused by software that loads when your Mac starts up since it will only launch some basic necessary programs. It turns out the hard drive is not responsible for Mac not booting up, then what is the reason behind Mac not turning on? You can find the answer under Safe mode. Nevertheless, another situation is no disk error is found by Disk Utility. If Disk Utility reports operation successful or repaired, you’re free to restart your computer. Click Run to check and repair errors in this drive.Click First Aid on the top menu of Disk Utility.Select the drive or volume that you want to repair in the left sidebar here, it should be Macintosh HD.

Click on View and choose Show All Devices to list all detected disks and volumes.

Select Disk Utility from the macOS ‘ Utilities’ window and click Continue.

Hold Command + R and start your Mac into macOS Recovery mode.

To rescue it, you are advised to check and repair the disk with Apple’s built-in disk repair tool, Disk Utility, under macOS recovery mode. If your Mac has problems booting up after the macOS update, it’s possible your Mac computer ran out of power, and the APFS reformatting process was interrupted, or the startup disk was corrupted. Step 1: Boot into macOS Recovery mode to check the Mac hard drive Now you can take a look at each of the steps.

Check if any program is not compatible with your macOS.

Check if the Mac hard drive is corrupted.

Let’s go straight to the point you are suggested to troubleshoot this issue by the following steps: Solutions to fix Mac not turning on after macOS update When your Mac doesn’t boot up, let’s keep on reading. This post will provide you with three steps. It could be really annoying when you urgently run your Mac, be it an iMac or a MacBook. However, many mac users found that a macOS update made their Mac not boot up. A new Mac OS is designed to improve user experience. Apple releases major Mac operating system updates annually, while minor system updates happen every two or three months.

Hard drive for macbook air 2013 version