SweedVette Author

Level 1

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This copy of the install macOS high sierra application is damaged

How do I download and install High Sierra? I can't even download a version without an expired cert.

iMac 27", macOS 10.12

Posted on Feb 1, 2020 3:47 PM

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macjack

Level 10

111,242 points

Posted on Feb 1, 2020 3:51 PM

First delete any installers you may have in Downloads or in Applications. They would be called "Install Mac OS High Sierra". Then restart your Mac and download from this link:

Get macOS High Sierra

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macjack

Level 10

111,242 points

Feb 1, 2020 3:51 PM in response to SweedVette

First delete any installers you may have in Downloads or in Applications. They would be called "Install Mac OS High Sierra". Then restart your Mac and download from this link:

Get macOS High Sierra

BDAqua

Level 10

250,253 points

Feb 1, 2020 4:14 PM in response to SweedVette

The other sure is...

Disconnect from the Internet & set the Date back to 2014, then you can run the Install MacsOS High Sierra App in Applications.

SweedVette Author

Level 1

8 points

Feb 1, 2020 4:18 PM in response to macjack

Thank you, that's res site that I got the OS from. I'll trying deleting everything in those folders first and restarting this time.

SweedVette Author

Level 1

8 points

Feb 1, 2020 4:19 PM in response to BDAqua

ok, i'll try that

SweedVette Author

Level 1

8 points

Feb 1, 2020 6:07 PM in response to macjack

I don't know how are why, but that appeared to work. Thank you macjack!

SweedVette Author

Level 1

8 points

Feb 1, 2020 6:08 PM in response to BDAqua

Thank you BDAqua.

BDAqua

Level 10

250,253 points

Feb 2, 2020 7:47 AM in response to SweedVette

You're welcome.

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This copy of the install macOS high sierra application is damaged