Whether for troubleshooting or other reasons, there may come a time when you need to reinstall macOS Monterey on a Mac that is currently running macOS Monterey.
The easiest way to reinstall macOS is to simply reinstall the macOS system software without deleting other data on the Mac, which is the method we will concentrate on here for a Mac running macOS Monterey 12.x.
Even though the Mac won't be erased, it’s highly recommended to use Time Machine to back up the Mac before proceeding with the macOS reinstallation. Failing to back up could lead to permanent data loss.
Note: We're focusing on Macs running macOS Monterey here, not Ventura, Big Sur, or other macOS operating systems. If you're running a different version of macOS and attempt this procedure, you'll end up reinstalling whatever version of macOS is currently active on your Mac.
How to Reinstall macOS Monterey Without Erasing the Mac
This method aims to reinstall only the macOS Monterey system software, without affecting user data such as photos, apps, documents, etc.
Restart the Mac and boot into Recovery Mode by pressing and holding the appropriate key combination immediately after restarting (For Intel Macs hold Command R, for Apple Silicon Macs hold the Power button and then click Options and select Continue).
Log in with a user account when prompted.
Select "Reinstall macOS" from the recovery menu options.
Follow the installation screens and choose the volume to reinstall macOS onto, usually "Macintosh HD".
Enter the admin password to unlock the Mac and proceed with the reinstallation of macOS Monterey.
Reinstalling macOS Monterey via Recovery Mode can take significantly longer than a typical macOS installation using an installer, so be prepared for at least a few hours to finish, and potentially even longer if you're on a slow internet connection.
One potential way to speed up the slow reinstallation process is to use a USB boot installer if one is available.
Regardless, once the installation is complete, the Mac will restart with a freshly reinstalled copy of macOS Monterey.
All user data, apps, documents, photos, etc., should remain intact as expected.
Although we’re focusing on macOS Monterey here, this same method can also be used to reinstall macOS Big Sur if that is the operating system version currently running on the Mac.
This might be the most convenient way to reinstall macOS system software because you don’t have to replace any user files or data; only the system software gets updated.
Usually, most users would take this approach for troubleshooting purposes, for instance if they encounter some serious system issues or the Volume Hash Mismatch error prompting them to reinstall macOS. Besides troubleshooting, there isn’t much of a reason to reinstall system software on a Mac while keeping user data intact.
Are you reinstalling macOS Monterey? If so, why? Let us know how it turns out, and whether it solved the problem you were facing.
The above is the detailed content of How to Reinstall MacOS Monterey. For more information, please follow other related articles on the PHP Chinese website!

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