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my mac will not let me update

my mac will not let me update. i have 10.13.6 but i need the latest update how do i update? i have already gone to app store under update and it wont allow me to update?

iMac 21.5″, macOS 10.13

Posted on Jan 18, 2022 12:55 PM

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Question marked as Top-ranking reply

Posted on Jan 18, 2022 1:09 PM

Please post the Mac model and year from 🍎 > About This Mac…, and with both the model and the model year, we can provide the available upgrade options.


Or if you want to research this yourself, start here: How to get old versions of macOS - Apple Support


Have a backup prior to the upgrade, if your Mac supports Mojave or later.


If you’re on the bottom-end 8 GB / hard disk drive iMac 21.5” model, performance tends to be lacking on more recent macOS versions. An iMac with SSD does much better, either internal or booting from external SSD.

5 replies
Question marked as Top-ranking reply

Jan 18, 2022 1:09 PM in response to Stevemusa447

Please post the Mac model and year from 🍎 > About This Mac…, and with both the model and the model year, we can provide the available upgrade options.


Or if you want to research this yourself, start here: How to get old versions of macOS - Apple Support


Have a backup prior to the upgrade, if your Mac supports Mojave or later.


If you’re on the bottom-end 8 GB / hard disk drive iMac 21.5” model, performance tends to be lacking on more recent macOS versions. An iMac with SSD does much better, either internal or booting from external SSD.

my mac will not let me update

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