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Install Mac os says its corrupted

My Install macOS says its corrupted and can't install. What do I do? I currently have Sierra and want to go to Mojave.

iMac 21.5″, macOS 10.13

Posted on Oct 18, 2021 9:22 AM

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6 replies

Oct 18, 2021 9:35 AM in response to SSBasha

If you get a corrupted message...

Naw, it's 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 ******* App in Applications, so expired Certificates are not expired.


Trash the Install MacsOS *******.app in Applications then a new copy more recent version can be downloaded.

Oct 18, 2021 10:04 AM in response to SSBasha

macOS Mojave 10.14.6 - Technical Specifications


General Requirements

OS X 10.8 or later

2GB of memory

12.5GB of available storage (OS X El Capitan 10.11.5 or later)*

Some features require an Apple ID; terms apply.

Some features require a compatible Internet service provider; fees may apply.

Mac Hardware Requirements

For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Mojave:

MacBook (Early 2015 or newer)

MacBook Air (Mid 2012 or newer)

MacBook Pro (Mid 2012 or newer)

Mac mini (Late 2012 or newer)

iMac (Late 2012 or newer)

iMac Pro (2017)

Mac Pro (Late 2013; Mid 2010 and Mid 2012 models with recommended Metal-capable graphics cards)


Don't use FireFox for these links…

https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12

Install Mac os says its corrupted

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