Can't find macos high sierra on app store. where to download it?
Trying to update my mid 2012 Macpro to Mojave. Need to install macos High Sierra. Not found on App Store. Where can I find it?
Mac Pro, macOS 10.12
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If you are wanting to install Mojave why are you asking for High Sierra?
Anyway if you are going to upgrade to Mojave does your 2012 Mac Pro (Silver Tower)
have a 'Metal' capable graphics card. In the Mojave How To.... below
pay special attention to the section about graphics cards for Mac Pros.
Please use Safari to access the following links do not use Firefox
How to upgrade to macOS Mojave - Apple Support
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.
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 ******.app.
Move it to the Trash, empty the Trash.
Restart, click on the link again, the App Store should say ‘Get' or 'Download'.
