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I updated the OS and Aperature no longer accessible. How do I get back to my old OS w/o losing my Aperature files

how to cancel updated OS and back to the Yosemite OS?


MacBook Air 13″, macOS 11.1

Posted on Nov 21, 2021 10:15 PM

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Question marked as Apple recommended

It sounds like you updated your operating system (OS) to a 64 bit only OS and the Aperature app is a 32 bit app. I suggest first checking to see if a 64 bit version is available for download, which is compliant with your operating system (whatever it is). If not, there are alternative apps which can do the same thing. If you insist on going back to your old OS, be prepared to do the following. Back up all of your files to an external disk. Next, erase and reformat your HD. Download and reinstall the older OS. Then reinstall all of your files. Please keep in mind that in the future, some new apps that you will want to install will require a 64 bit OS and that some will not work with your older 32 bit OS. It is a thing of the past.


Posted on Nov 22, 2021 10:23 AM

2 replies
Question marked as Apple recommended

Nov 22, 2021 10:23 AM in response to rxonfire

It sounds like you updated your operating system (OS) to a 64 bit only OS and the Aperature app is a 32 bit app. I suggest first checking to see if a 64 bit version is available for download, which is compliant with your operating system (whatever it is). If not, there are alternative apps which can do the same thing. If you insist on going back to your old OS, be prepared to do the following. Back up all of your files to an external disk. Next, erase and reformat your HD. Download and reinstall the older OS. Then reinstall all of your files. Please keep in mind that in the future, some new apps that you will want to install will require a 64 bit OS and that some will not work with your older 32 bit OS. It is a thing of the past.


I updated the OS and Aperature no longer accessible. How do I get back to my old OS w/o losing my Aperature files

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