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How to Fix Mac Software Update Stuck on Installing macOS 12 Monterey?

Your Mac installation stuck/frozen or is slow when you're upgrading to macOS 12 Monterey? Specifically, your Mac install stuck on Apple logo with a status bar showing the progress as the software is loading; Mac update stuck on gray screen, white or black screen; or your macOS update is extremely slow. What to do if your macOS Monterey installation can't be completed, get stuck, frozen or extremely slow? Here some tips are shared to fix Mac installation stuck problem.

Backup File Data on Mac before macOS 12 Installation

Considering macOS 12 Monterey update stuck occurs now and then, it's better to "have a mac backup" than "need a backup" lest Mac update software stuck results in unexpected data loss. So utilize MacX MediaTrans to bulk backup photos, videos, music, ringtone, ebook, iTunes purchases, etc on your Mac before you install new macOS Monterey.

Plus, after you backup macOS data, there are more memory to install macOS Monterey, less chance for stuck, slow issue.

Make Sure Your Mac Installation Got Stuck/Frozen Really

At the very beginning you need to check if your macOS update gets really stuck since the macOS upgrade takes a very long time, usually couples of hours needed. Of course, there are exceptions as well. Sometimes update can take 16 hours or more. So it's quite essential to see the Log to make sure whether your Mac is still installing macOS Monterey normally.

Just press Command + L, you can see the detailed remaining time of the whole Mac installation, what files have been installed, what files will be installed next and the amount of time left. If the Log screen shows that nothing is happening, your Mac installation stuck/frozen indeed. Also learn the right way to update to Monterey >>

Solutions to Fix Mac Installation Failed/Stuck/Frozen/Slow Errors

If your Mac is unable to install macOS Monterey or freezing on installing, try the following workarounds to troubleshoot this annoying issue. Hopefully any of the following approaches will work for your macOS installation problem.

Read more: Fixes to macOS 12 Monterey installation stuck & any other update problems.

1. Check if your Mac supports macOS 12 Monterey

Unlike the previous macOS 11 Big Sur, the successor macOS 12 has far higher demanding on your Mac computer hardware configurations. That's to say, your antique Macs are not welcome in the 2021 newly released macOS Monterey. Before you install macOS Monterey, check if your Mac is included in the macOS 12 supported Macs list:

Here are the devices that can run macOS 12 Monterey:

  • iMac Pro 2017 and later
  • iMac late 2015 and later
  • MacBook early 2016 and later
  • MacBook Pro early 2015 and later
  • MacBook Air early 2015 and later
  • Mac Pro late 2013 and later
  • Mac mini late 2014 and later

Therefore, upgrade your Mac to new Mac model if your Mac is not covered in the above list. And you'd better upgrade Intel Mac to M1 Mac notwithstanding your older Intel Mac can update to macOS 12 Monterey. Why?

There some features of macOS Monterey however that will only be accessible on M1 Macs. It seemingly indicates that Apple are already planning to move from Intel Macs to Apple Silicon.

2. Shut down your Mac and wait for some time.

When a new OS releases, a massive number of people will go to download and install the updates in a snap. As a result, the downloads and installation will be very slow with the large file and many people doing the same thing at the same time, and even fail during the process.

What you should do is to wait for the server becoming available. According to Apple system status page, macOS Software Update issue has been resolved. Now you should download the macOS Monterey update file faster and install it without seeing "An error occurred while installing the selected updates"message.

macOS Monterey Installation failed error

3. Go to Mac App Store and open updates.

If your Mac install stuck on Apple logo, gray/white/black screen when you were installing an App, you can go to Mac App Store to find this app and open the updates to survive from the macOS installation stuck situation.

4. Download & install the combo update.

The Mac App Store isn't the only place to download macOS from. When your encounter problems on macOS Monterey installing, you can try to download the combo macOS update from the Apple official site because the macOS installation package downloaded from Mac App Store may only include the essential files for your Mac update, instead of the combo updater with all the files required to update to macOS.

5. Install in Safe Mode.

Safe mode (also called safe boot) is a way to start up your Mac so that it performs certain checks and prevents some software from automatically loading or opening. When your Mac installation stuck or Mac runs slow when Monterey installing, you can install in Safe Mode so that you're able to resolve issues that might keep your Mac from completely starting up, or to isolate other issues related to your startup disk. Simply press the power button and hold down the Shift key to start the Mac up in Safe Mode. Open App Store and update your apps while in Safe mode. Reboot.

mac-installation stuck

6. Clear Mac Storage Space.

Click on the Apple icon > About This Mac >Storage to check the space available on your Mac computer. If your Mac doesn't have enough space, the macOS Monterey installation can be stuck or slow as well. The Monterey installer requires aboutl 12GB. But to install Monterey update without error, you should at least have 25GB free space on your Mac. This is a lot of space for MacBook Pro/Air with storage lower than 128GB.

Thus, you may need to free up your Mac space to solve the Mac installation stuck problem. There are many tools to make this done, and MacX MediaTrans absolutely deliver the double benefit of clear Mac space and make a backup of your significant files.

mac installation frozen

7. Reinstall macOS with Recovery Mode

also works for Mac installation frozen error. But to be frank, it's the least option, since there is a possibility to loss your Mac data. To adopt this solution, you can hold down Command + R at start up. Then recover your Mac from last Time Machine backup, or from iTunes and iCloud backup.

macos installation slow

8. Reset PRAM/ NVRAM and SMC [for M1 Mac]

If the Monterey installation gets stuck on your intel Mac or MacBook, restart your Mac first. If that doesn't work, reset the Reset PRAM/ NVRAM to clean up and re-build all startup Programme value on Mac. To do this: restart the Mac and hold down Command, Option/Alt, P and R.

9. Switch your internet

In some cases, the Monterey installation freezes when the internet is poor. It's often the case when you see the error "The operation couldn't be completed. (PKDownloadError error 3/8.)". The solution is easy. Check if your Wi-Fi works properly. Switch to another internet, use a VPN, or change the DNS settings.

10. Install macOS from the External Hard Drive.

Well, if you're still having issues with the install you could try installing the OS from an external drive. This sounds unpractical, right? But if you actually install macOS Monterey on an external drive, flash drive, or SD card, you can use the external hard drive for Mac as the macOS system disk wherever you go. To make this done, you need an external storage device with a minimum capacity of at least 16 GB (though the larger the better) and a copy of the macOS 12 Monterey installer.

Finally, when you get the macOS Monterey installed, we advise that you run Disk Utility to correct any issues that might have caused the problem in the first place:

  • Simply, click on the Finder Icon from the dock;
  • Locate and click to open Applications within the left pane of the Finder window;
  • Scroll to the bottom of the Applications window to locate and click to open Disk Utility.

Make A Backup of Your Mac Before Upgrade

MacX MediaTrans, an awesome data transfer tool between Mac and iOS, allows you to transfer Mac files, like video, photos, music, iTunes purchases, ringtone etc. so as to make a backup of Mac data and free up more space on MacBook/iMac.