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Why can't I download and install older versions of OS that I have had on my MacBook Pro?

How can I download an older version of OS? I get a download failed error or an error stating my computer is already up to date depending on the version I try to download. I am trying to download pervious versions I have had on my computer. Every video I watch on you tube makes it sound so easy be I keep getting errors. What am I doing wrong?


MacBook Pro 15″, macOS 10.15

Posted on Aug 25, 2022 2:23 PM

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Posted on Aug 25, 2022 2:50 PM

You can download versions of macOS going back to whatever version shipped with your Mac. However, to install them you would have to erase your current version and use a Bootable Installer to install them.

How to get old versions of macOS - Apple Support

How to create a bootable installer for macOS - Apple Support

Not sure why you want to go through all that.

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Question marked as Best reply

Aug 25, 2022 2:50 PM in response to CodeAZ

You can download versions of macOS going back to whatever version shipped with your Mac. However, to install them you would have to erase your current version and use a Bootable Installer to install them.

How to get old versions of macOS - Apple Support

How to create a bootable installer for macOS - Apple Support

Not sure why you want to go through all that.

Why can't I download and install older versions of OS that I have had on my MacBook Pro?

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