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APP Store - Updater is not seeing High Sierra 10.13.6 from Sierra 10.12.6

Just updated my older MacBook Air (Mid 2011) to Sierra 10.12.6. However, it cannot see High Sierra 10.13.6 in App Store when click to update. Just doesn't show any additional updates past the Security Update. This link states my MacBook Air is compatable with High Sierra 10.13.6 but its not there nor can i find it in a search on App Store. Is there some kind of trick or am I screwed? https://support.apple.com/en-us/HT208969

Posted on Oct 18, 2020 7:52 PM

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Question marked as Top-ranking reply

Posted on Oct 18, 2020 11:30 PM

The App Store Updates page only informs you of updates available for the OS you are currently running.

As you are running an older system then you are probably up to date on that system.


If you want to install a newer OS that is called an Upgrade. 


The model and year of your Mac will determine which macOS you can upgrade to,

read Section 1 in each of the How To's.... below.


Please use Safari to access the following links do not use Firefox


How to upgrade to macOS High Sierra - Apple Support


Before upgrading make a full back up of your Mac.


Check that third party apps you use have updates available for the new OS.

https://roaringapps.com

Check that your printers/ scanners etc have updated drivers and software available for the new OS.


Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.


If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS High Sierra.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.

1 reply
Question marked as Top-ranking reply

Oct 18, 2020 11:30 PM in response to GCJ-UNC

The App Store Updates page only informs you of updates available for the OS you are currently running.

As you are running an older system then you are probably up to date on that system.


If you want to install a newer OS that is called an Upgrade. 


The model and year of your Mac will determine which macOS you can upgrade to,

read Section 1 in each of the How To's.... below.


Please use Safari to access the following links do not use Firefox


How to upgrade to macOS High Sierra - Apple Support


Before upgrading make a full back up of your Mac.


Check that third party apps you use have updates available for the new OS.

https://roaringapps.com

Check that your printers/ scanners etc have updated drivers and software available for the new OS.


Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.


If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS High Sierra.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.

APP Store - Updater is not seeing High Sierra 10.13.6 from Sierra 10.12.6

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