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Where can I get OS 10.12. I need this to continue with other updates of OS

Where can I get OS 10.12. I need this to continue with other updates of OS

MacBook Air 13″, macOS 10.15

Posted on Jan 2, 2021 5:36 PM

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Question marked as Top-ranking reply

Posted on Jan 3, 2021 1:50 AM

Your profile says you are on 10.15, why do you want 10.12.


If you really need it get it here,


How to get old versions of macOS – Apple Support


Go to Download macOS and click on macOS Sierra 10.12


This downloads InstallOS.dmg to your Downloads folder.


The next section can only be done on a mac that is capable of running Sierra,

a mac that came preinstalled with an OS later than Sierra will refuse to do the next bit.


When downloaded open to get InstallOS.pkg, double-click on

that and an installation window will open, read and follow the prompts,

this does not install Sierra but uses the InstallOS.pkg to create the 

Install macOS Sierra.app which you will find in your Applications folder.


 (If the installation window asks which disk you want to install to, you must pick 

the disk that you are booted to at the time. Not any internal or external disk that 

you want to eventually install Sierra on, that is for later.)


To start the installation of Sierra double click on the Install macOS Sierra.app.

This will install macOS Sierra version 10.12.6 which is all you need.


The copy of the install app self deletes after installing Sierra, so make sure you keep a copy of the InstallOS.dmg

if you need it in future, or you could just make a copy of the Install OS X Sierra.app prior to installing and moving

it to an external drive for safe keeping. 



1 reply
Question marked as Top-ranking reply

Jan 3, 2021 1:50 AM in response to jtrippy

Your profile says you are on 10.15, why do you want 10.12.


If you really need it get it here,


How to get old versions of macOS – Apple Support


Go to Download macOS and click on macOS Sierra 10.12


This downloads InstallOS.dmg to your Downloads folder.


The next section can only be done on a mac that is capable of running Sierra,

a mac that came preinstalled with an OS later than Sierra will refuse to do the next bit.


When downloaded open to get InstallOS.pkg, double-click on

that and an installation window will open, read and follow the prompts,

this does not install Sierra but uses the InstallOS.pkg to create the 

Install macOS Sierra.app which you will find in your Applications folder.


 (If the installation window asks which disk you want to install to, you must pick 

the disk that you are booted to at the time. Not any internal or external disk that 

you want to eventually install Sierra on, that is for later.)


To start the installation of Sierra double click on the Install macOS Sierra.app.

This will install macOS Sierra version 10.12.6 which is all you need.


The copy of the install app self deletes after installing Sierra, so make sure you keep a copy of the InstallOS.dmg

if you need it in future, or you could just make a copy of the Install OS X Sierra.app prior to installing and moving

it to an external drive for safe keeping. 



Where can I get OS 10.12. I need this to continue with other updates of OS

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