How To Fix The Error It States “macOS Could Not Be Installed on Your Machine!

An error message saying “macOS could not be installed on your computer” is one of the worst that might appear. It appears when you try to upgrade your Mac’s operating system but are unable to do so. The words may seem ominous, but that doesn’t mean your installation can’t function.

What this really says is that it was just unsuccessful in that particular instance. Inconveniently, there may be multiple causes for this problem. There is good news, though: with some effort, your Mac can be revived and restored to full functionality.

What Causes The ‘macOS Could Not Be Installed’ Error?

There could be a number of factors at play here. If something has gone wrong, though, the error screen should reveal its nature.

Here are some messages you might see underneath the warning:

• The path/System/Installation/Packages/OSInstall. Mpkg appears to be missing or damaged.
• An error occurred installing macOS.
• Unable to unmount volume for repair.
• Storage system verification or repair failed.
• An error occurred while verifying firmware.

Whilst some provide more detail than others, they all indicate various broken steps in the installation process. The following procedures and adjustments should solve the aforementioned issues.

How to Fix the ‘macOS Could Not Be Installed’ Error

It may take some time to resolve the “macOS Could Not Be Installed” problem. The simplest solutions are usually the best place to start, but if that doesn’t work, you still have additional options to consider. The methods to consider are listed below.

1. Restart and Try the Installation Again: It may seem counterproductive to repeat an unsuccessful action, but a restart is often all that’s required to get your Mac back on track.

2. Check the Date & Time settings: This could be the issue if the time and date being shown are incorrect. If that doesn’t work, restart your Mac once again and then navigate to System Preferences > Date & Time. To make modifications, select the lock and provide your password (if prompted). Next, select the option to Automatically set a date and time. As soon as you’ve done so, try installing it again to make sure everything went smoothly.

3. Free up space: When there is insufficient storage space, Mac OS X cannot be installed. Click the Apple menu and choose About This Mac > Storage to view the storage capacity of your Mac. A detailed inventory of your hard drive’s contents will be displayed.

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To find out how much room is available, move the cursor over the blank area to the right of the bar. If it looks low, try temporarily removing some files to see if it frees up space the installation needs to continue.

4. Delete the Installer: The Mac Os Installer Can Be Deleted by Locating It in The Downloads Folder in The Finder and Dragging It There. the Next Step Is to Redownload It and Try Again.

5. Reset the NVRAM: The Time, the Display’s Resolution, and The Disk to Boot from Are All Kept in This Tiny Bit of Memory. Attempting the Installation Once More Before Returning to System Preferences to Revert Any Altered Settings Is a Good Idea.

6. Restore from A Backup: You Can Test the Installer’s Compatibility by Restoring Your Mac to A Previous State Using Recovery Mode if You Routinely Back up Your Mac with Time Machine.

1. Connect Your External Hard Drive as A Backup. Then, Restart the Machine While Holding the Command+r Keys. Instead of Loading the Desktop, Mac Os Utilities Will Appear when You Select the Primary Language.
2. To Use a Time Machine Backup, Select It in Mac Os Utilities and Then Click the Restore Button. Follow that up with A Click on The Proceed Button.
3. In the Middle of Doing Anything, You’ll See a Screen that Explains What that Something Is. to Keep Going, Use the Next Button.
4. Choose the Backup Disk and Then Click Proceed Again to Be Sent to A Screen Where You May Select the Most Recent Backup You Made. Then, After That, Select Next.
5. You Can Test the Efficacy of The Installation by Reverting to A Previous Backup and Restarting Your Computer.

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7. Launch Disk First Aid: if You’re Experiencing an “unable to Mount Volume” Error, This Could Be the Solution. a First Aid Kit for Your Computer. First Aid Scans the Internal Hard Drive and Makes Any Necessary Repairs. It’s Possible that Once It’s Finished, the Volume Can Be Mounted. After That, You Can Attempt Setting up Again.

Still, Need Help?

If You Have Exhausted These Options without Success, You May Need to Have Your Computer Serviced by A Professional. Read Our Guide on Getting Your Computer Fixed for Tips on Where to Look for Help and How to Get Your Mac ready for repairs.