One Response to 'This version of macOS 10.12 cannot be installed on this computer Fixed' By Margaret - My new MacBook Pro 10.12 is advertising Sierra to buy but I am not sure whether it has already be installed or not when the transferred the data over fro my old laptop. OS X could not be installed hdd which are formatted in NTFS file system. Hpfs+ partition is the first step in for install. In some cases see your must turn back your computer date to 10.2019 to obtain success on install. Moreover You’ll have to select the AHCI parameter on your bios computer because Mac does not support IDE. Now for the bad news: It is unlikely that your Mac will be able to run a version of macOS or Mac OS X that is older than the one that was installed on it when you bought it.

  1. This Version Of Macos Cannot Be Installed On This Computer Right Now
  2. This Version Of Macos Cannot Be Installed On This Computer Big Sur

macOS Big Sur finally saw the light of day in November 2020. As the latest operating system has lots of new features and improvements, and most of us want to install it as soon as we can. Most of the time, everything works out, and we’re up and running very quickly. Sometimes, however, it doesn’t go well, and you see a message saying that the macOS installation couldn’t be completed.

macOS Big Sur can't be installed on Macintosh HD

That's the most common message that shows up. What do you do then? We’re glad you asked because we have some answers below.

Before you attempt to install any major update to macOS, you should back up your Mac. If you use Time Machine, you can run a manual backup using that. If not, run a backup using whichever backup tool you usually use. If you don’t run scheduled backups – and you really should – clone your boot drive to an external disk before you start.

Why won’t macOS Big Sur install?

There are several possible reasons:

  • Your Mac doesn’t support Big Sur
  • The update couldn’t be downloaded
  • You don’t have enough disk space
  • There’s a conflict in your system preventing the process from completing

Check if your Mac is compatible

Here’s the list of Macs that are supported by Apple for installing Big Sur. If your Mac isn’t on it, it’s unlikely you’ll be able to run Big Sur.

  • Any Mac Pro or iMac Pro
  • MacBook Pro and MacBook Air 2013 and later
  • iMac and Mac mini 2014 and later
  • MacBook 2015 and later

What to do if the macOS Big Sur download is stuck

  1. Check Apple’s System Status page for information about possible server issues on Apple’s end.
  2. Check your internet connection.
  3. Try to download it from the Mac App Store if your first attempt was through Software Update. If your first attempt was in the App Store, try Software Update.

If you see a message telling you that macOS cannot be installed or Big Sur is stuck on the progress bar, try the following.

Free up disk space with CleanMyMac X

System

You’ll need around 16GB of free space to upgrade to macOS Big Sur. However, even if you have more than that, your Mac may tell you that you can’t upgrade because it thinks you don’t have enough free space. This can happen for a number of reasons. The simplest solution is to free up more space. And the best way to do that is to use CleanMyMac X.

This app makes it very quick and easy to free up several gigabytes of space by getting rid of junk files that clog up your Mac. It can also be used to uninstall applications, identify large and old files, illustrate what’s taking up the most space, and even protect your Mac from malware. Here’s how to use it to free up space quickly.

  1. Download and install CleanMyMac X. It’s free to try it out.
  2. Press Scan.
  3. Press Run to remove all the junk files CleanMyMac has found, or click Review Details to find out more.

As you can see from the screengrab, I was able to save 10GB of disk space in just a few minutes.

macOS Big Sur stuck on 12.18 GB out of 12.18GB

Another common issue is when your download size reaches 12.18 GB and then the download just freezes. In this situation, don’t trust the progress bar report — it’s most likely a miscalculation. In fact, your download is still in progress — but the system is reading it differently.

So how to fix macOS Big Sur stuck on 12.18 GB

  • 1. Disconnect from the internet (or turn off the Wi-Fi)
  • 2. Re-connect so you’re online again.
  • Check for the update and click the upgrade button.

Your download should resume — this time it may go faster as some components have been downloaded already.
If the progress bar stops again, disconnect from the internet and repeat the above steps.
So, 'reviving' the lost connection seems to be the fix.

Optimize your storage

As an alternative, you can also use Apple’s built-in storage management tool to free up some storage space.

  1. Click on the Apple menu and choose About this Mac.
  2. Choose Storage.
  3. Press Manage.
  4. Review the recommendations and follow those that are relevant.
  5. Go through each of the sections in turn and identify then delete files taking up lots of disk space – like old iOS backups, for example.
  6. When you’re done, press Command-Q to quit.

Try installing macOS Big Sur in Safe Mode

Sometimes launch agents, login items, or extensions that load when your Mac boots can cause problems when installing a new version of macOS. To check whether that’s the problem, you can restart your Mac in Safe Mode and then try updating it to Big Sur.

  • Shut down your Mac.
  • Wait ten seconds, then press the power button.
  • As soon as your Mac starts up, press Shift.
  • Release the Shift key when you see the Apple logo.

The free version of CleanMyMac X can also help manage and remove launch agents and login items. Choose the Optimization module in the sidebar to get started.

There are lots of reasons why your Mac won’t update to Big Sur. Thankfully, most of them can be fixed. If you follow the steps above, and particularly if you use CleanMyMac X to help, you should have it installed and running in no time.

  • Part 1: Not Enough Storage Space for macOS Sierra Update
  • Part 2: This Version of macOS Cannot Be Installed on This Computer
  • Part 3: macOS Could Not Be Installed on Your Computer
  • Part 4: macOS Sierra Cannot Be Installed on (null)
  • Part 5: macOS Sierra Is Downloaded but Cannot Be Installed
  • Part 6: macOS Sierra Installation Stuck or Failed
  • Part 7: Recover Lost Data After macOS Sierra Update
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By updating to the latest macOS Sierra, you can get rid of certain glitches easily. However, many people have problems while downloading or installing the new Apple update. The total macOS Sierra update time varies from 45 minutes to 2 hours. If you cannot update Mac to the latest version for hours, then there must be something wrong.

To troubleshoot macOS Sierra download and install problems, this article collects common Mac update problems and related solutions. Just read and check if you encounter the same Mac installation error.

Guide List

1. Not Enough Storage Space for macOS Sierra Update

Your Mac computer will freeze or run slowly due to the lack of enough running space. The maximum macOS Sierra update requires 8GB free storage space. If you want to get good performance, you need to leave at least 15GB storage space on Mac. You can delete large files or use third-party Mac cleaning software to solve the problem.

2. This Version of macOS Cannot Be Installed on This Computer

The macOS installation couldn’t be completed issue may be caused by the incompatibility issue. To troubleshoot macOS Sierra fail to install problems, you need to upgrade your Mac to the late 2010 and newer versions first.

3. macOS Could Not Be Installed on Your Computer

It means the macOS Sierra update file is corrupted or interrupted. You need to delete the damaged Mac update file named Install macOS Sierra from Launchpad. Reboot your Mac to bypass other potential problems. Later, you can re-download the latest update file to troubleshoot macOS Sierra problems.

4. macOS Sierra Cannot Be Installed on (null)

The macOS Sierra update fails when it is almost complete in a few seconds. It is quite disappointing when you receive the notification after long-time waiting. During this time, you have to restart your computer before installing. It should be the universal solution to troubleshoot macOS Sierra download and install problems, as well as other computer issues.

5. macOS Sierra Is Downloaded but Cannot Be Installed

Sometimes you may find that macOS Sierra update does not display in the Updates section. There is no available Update option after downloading Mac update files. In some situations, the macOS Sierra update is downloaded to the hard disk. You can head to the Application folder to find it. Later, you can install macOS Sierra successfully.

6. macOS Sierra Installation Stuck or Failed

This Version Of Macos Cannot Be Installed On This Computer Right Now

This version of macos cannot be installed on this computer called

Here are some general fixes to troubleshoot macOS Sierra update stuck or failed problems. If the macOS Sierra installation process does not respond for a long time, you can do as the following paragraphs tell.

  1. Uninstall antivirus software to reinstall macOS Sierra update.
  2. Hold and press Power and Shift keys to troubleshoot macOS Sierra installation stuck issues.
  3. Switch to a hardwired connection.
  4. Download and install macOS Sierra update in Safe Mode.
  5. Speed up your computer by turning off display effects and optimizing Mac storage.

7. Recover Lost Data After macOS Sierra Update

If you haven’t backed up Mac files with Time Machine, you can run FoneLab Data Retriever to recover lost Mac data smartly. There is no need to recover from the entire Mac backup. You can scan, preview and recover any file on Mac without backup, both deleted and existing files are supported.

Fortunately, the Mac data recovery software still works under macOS Sierra update failure, deletion, formatted partition, RAW hard drive and many other crashed problems. Thus, you can even recover Mac files before fixing macOS Sierra download and install problems.

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  • Preview data before recovery.
  1. Support macOS Sierra data recovery from system update failure, deletion, disk format, virus infection and many other problems.
  2. Recover lost photos, videos, music, documents, emails and more in various formats.
  3. Detect your disappeared Mac files via Quick Scan and Deep Scan modes.
  4. Work with Mac 10.7 and above versions (macOS Mojave included).

This Version Of Macos Cannot Be Installed On This Computer Big Sur

These are all proven ways to troubleshoot macOS Sierra download and install problems. You can update to the latest macOS Sierra version without data loss easily here. If the Mac won’t update problem still exist, you can feel free to contact us.

You are also read about fix Macbook Pro shuts down randomly, recover Mac data external hard drive read-only, USB flash drive not showing up on Mac.

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