Apple releases major Mac operating system updates annually while minor system updates happen every two or three months. A new Mac OS is designed to improve user experience, however, many mac users found that a macOS update made their Mac not boot up. It could be really annoying when you are urgent to run your Mac, be it an iMac or a MacBook. This post will provide you with three steps when your Mac doesn’t boot up, let’s keep on reading.
Macintosh HD, or the MacBook internal hard drive, is basically the startup drive of most Apple computers. That means if your Mac or MacBook Pro can’t mount its startup disk, it is likely that you will experience problems, like your computer gets stuck on the login screen or it does not boot at all. The Start up disk does not have enough space to be partioned You must have at least 41 GB of free space available. Is it impossible to do it on a mac with this size ssd? I bought a 2tb hard drive, which is not helpful from what I've seen. Is the startup disk something I can completely clear? These tips will work for any MacBook, MacBook Air. If something is wrong with your MacBook’s power, it may not have enough charge to turn on after the battery dies. Start up in Safe Boot.
Solutions to fix Mac not turning on after macOS update
Let’s go straight to the point, you are suggested to troubleshoot this issue by the following steps:
- Check if the Mac hard drive is corrupted
- Check if any program is not compatible with your macOS
- Check for a hardware incompatibility
Now you can take a look at each of the steps.
Step 1: Boot into macOS Recovery mode to check the Mac hard drive
If your Mac has problems in 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. 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. Grab your attention to see how it works.
- Hold Command + R and start your Mac into macOS Recovery mode.
- Select Disk Utility from the macOS ‘Utilities’ window and click Continue.
- Click on View and choose Show All Devices to list all detected disks and volumes.
- Select the drive or volume that you want to repair in the left sidebar, here it should be Macintosh HD.
- Click First Aid on the top menu of Disk Utility.
- Click Run to check and repair errors in this drive. Wait for the process.
If Disk Utility reports operation successful or it has been repaired, you’re free to restart your computer. Nevertheless, another situation is no disk error is found by Disk Utility. 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.
Step 2: Boot your Mac into Safe Mode
Safe mode is able to determine whether an issue is caused by software that loads when your Mac starts up since it will only launch some basic necessary programs. That means it can isolate incompatibility software that makes your Mac unbootable. Really helpful, right? Here’s what you should do:
- Press and hold the power button until the Mac forcibly shuts down.
- Restart this Mac with the Shift key pressed and held to start the Mac up in Safe Mode.
- Release the key when you see the progress bar.
Once you boot into Safe Mode successfully, you’ll see Safe Boot at the right top. And it indicates that the unbootable Mac is caused by third-party software incompatibility. You must be wondering who’s the culprit, don’t worry, Verbose mode can help you out.
You need to reboot the Mac, then hold Command + V at startup. What catches your eye is a live report but it will stop at the misbehaving software that prevents the Mac from booting up. Now you have caught the culprit and all you need to do is uninstalling it in Safe Mode.
Unfortunately, if you fail to boot into Safe Mode, it means it’s a macOS update failure. You need to reinstall the macOS in Recovery mode and reinstallation can place your data in danger. Therefore, before making any movement, you are strongly advised to restore your data with iBoysoft Data Recovery for Mac from an unbootable Mac first.
Step 3: Go to Apple store for help
You are here because your hard drive is safe and sound, and there’s no software incompatibility found in Verbose Mode. What else you can do to get rid of the trouble? Go check the hardware inside your Mac. Don’t be nervous, you are not required to do it yourself. Apple has many bricks and mortar stores and you can easily get help there.
Further reading: Common boot problems after macOS Big Sur update
Coming with the biggest design update, macOS Big Sur made its appearance in June 2020. It’s the latest major release of the Mac operating system and now is in beta version. Up to now, known boot issues of macOS Big Sur Beta include the following.
- If you updated to macOS Big Sur 11 beta from a previous version of macOS, Software Update might show “Unable to check for updates – Failed to download the documentation for the minor update. Please try again later”.
- You might be unable to install macOS Big Sur 11 beta onto additional volumes.
If you have met these issues as well after updating to macOS Big Sur, feel free to try the above three solutions.
Don’t know how to check disk space on Mac? Read this guide about how to see disk space on Mac, and get a simple method to free up disk space on your Mac easily and quickly.
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MacClean – Your Best Mac Cleaner Software
Download MacClean prior to save your time before reading this guide on how to check and free up disk space on Mac.
All of your apps and files on your Mac are stored on your hard drive. You can easily check the free space on your hard disk to make sure you have enough space on your computer’s hard disk. That’s because Mac OS X needs some free space to function effectively. Just follow the instructions below to determine how much space is available.
How to Check Disk Space on Mac
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Part 1. How to Check Disk Space on Your Mac
Step 1. On a desktop, click the Apple icon and select “About This Mac”.
Step 2. At the About This Mac window, click on the “More Info” button.
Step 3. Choose the “Storage” tab to check the disk storage overview and capacity.
Or you can
Tuneskit apple music converter 2 0 1. Step 1. On your Mac desktop, find your hard drive icon.
Step 2. Right click it and choose “Get Info” option.
Postbox 7 0 4 – powerful and flexible email client. Step 3. You will see “Capacity” of drive, “Available” and “Used” space.
If you find your disk space is running out of space, you might need to clean up your Mac in order to free up disk space on your Mac. Now follow the rest part to free up disk space on Mac with an effective Mac cleaning software MacClean.
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MacClean is one powerful cleaning tool made to free up and speed up your Mac. It works well for all Mac computers, including MacBook Air, MacBook Pro, iMac, Mac mini, etc. This professional software can help you remove all kinds of junk files and cookies from your Mac to get more available disk space. It can also find out malicious cookies to eliminate hidden dangers.
Part 2. How to Free Up Disk Space on Mac with MacClean
Step 1. Free download and install MacClean on your Mac computer. Take a few seconds to finish the installation process.
Step 2. Clean junk files on your Mac. You can click any junk item on the left side of this software to clean them, such as System Junk (User Junk, OSX Junk, App Leftover) and Internet Junk (Browsing History, Caches, Download History and Cookies).
How to Free Up Disk Space on Mac with MacClean – Step 2
Macbook Startup Disk Missing
Step 3. Delete some useless old/large files or duplicate files on your Mac. By using Cleanup and Optimization Tools of MacClean, you can easily pick out duplicates and old/large files.
Macbook Air Not Enough Space On Startup Disk Mac
How to Free Up Disk Space on Mac with MacClean – Step 3
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The Bottom Line
If your Mac is running out of space after checking the disk space on your Mac, just try MacClean to free up more disk space on your Mac. If you have any questions, please let us know in the comment section. Meanwhile, please share this guide with your friends if it is helpful for you.
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