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I have an iMAC 2011. I believe I cannot upgrade to the latest OS version but with my current status I cannot use certain software I wish to. I believe my iMAC can be upgraded to High Sierra but when I use the links in other threads (Version 10.13.6) it says the version is damaged OR that I have to upgrade to 10.13.1 to upgrade further. However, I have yet to find a link that works. Any assistance would be appreciated. Thank you.
iMac 27″, macOS 10.12
You need to download the full installer app.
Open your Safari browser and click on this link,
How to get old versions of macOS – Apple Support
Go to Download OS and click on macOS High Sierra,
this will redirect you to the App Store High Sierra page
it should say Get or Download. This will download Install macOS High Sierra to your Applications folder
it should be 5.24GBs in size.
This will install the last/ latest version of High Sierra 10.13.6
this is all you need.
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'.
You need to download the full installer app.
Open your Safari browser and click on this link,
How to get old versions of macOS – Apple Support
Go to Download OS and click on macOS High Sierra,
this will redirect you to the App Store High Sierra page
it should say Get or Download. This will download Install macOS High Sierra to your Applications folder
it should be 5.24GBs in size.
This will install the last/ latest version of High Sierra 10.13.6
this is all you need.
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'.
Thank you - will try this.....
Why can't you drag and drop, that is a bit odd.
Control-click on Install macOS High Sierra.app and select Move To Trash.
Unable to upgrade from Sierra 10.12.6
