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Good day, how can i fix this problem and update my MacOS high sierra?
MacBook Air 13″, macOS 10.12
If you get a corrupted message...
Naw, not damaged, it's just that you have an old copy already in Applications, there are 2 cures...
Disconnect from the Internet & set the Date back to 2014, then you can run the Install MacsOS High Sierra App in Applications, so expired Certificates are not expired.
Or... trash the Install MacsOS High Sierra.app in Applications then a new copy more recent version can be downloaded.
If you need a new copy, don't use Firefox for this link...
https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12
If you get a corrupted message...
Naw, not damaged, it's just that you have an old copy already in Applications, there are 2 cures...
Disconnect from the Internet & set the Date back to 2014, then you can run the Install MacsOS High Sierra App in Applications, so expired Certificates are not expired.
Or... trash the Install MacsOS High Sierra.app in Applications then a new copy more recent version can be downloaded.
If you need a new copy, don't use Firefox for this link...
https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12
Thank you so much. I disconnected the internet, set to 2014 then run the MacOS high sierra app and it worked.
Great news Sandra, take care! :)
I am unable to do any updates on my Macbook. Can u please assist? I get the message this copy of MacOS high sierra is damaged snd cannot be used to get MacOS.
