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MacOS Cannot be Verified

I’m on macOS mojave and when i try and download macOS big sur it keeps saying that the update cannot be verified. I wanted to know how i can fix it?

MacBook Pro 13″, macOS 10.14

Posted on Mar 11, 2021 8:20 PM

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Posted on Mar 11, 2021 11:21 PM

The macOS Big Sur installer app is a whopping 12.24GBs in size.

Move the copy you have to the Trash, empty the Trash.

Connect your mac to your router via cable.

Restart your mac open your Safari browser and click on this link,

How to upgrade to macOS Big Sur - Apple Support

Go to Section 4 and click on Get macOS Big Sur.


This will redirect you to the App Store Big Sur download page

it should say Get or Download.

Do not use the mac while it is downloading and do not use any

other devices that share the same internet connection.

1 reply
Question marked as Best reply

Mar 11, 2021 11:21 PM in response to SeanM27

The macOS Big Sur installer app is a whopping 12.24GBs in size.

Move the copy you have to the Trash, empty the Trash.

Connect your mac to your router via cable.

Restart your mac open your Safari browser and click on this link,

How to upgrade to macOS Big Sur - Apple Support

Go to Section 4 and click on Get macOS Big Sur.


This will redirect you to the App Store Big Sur download page

it should say Get or Download.

Do not use the mac while it is downloading and do not use any

other devices that share the same internet connection.

MacOS Cannot be Verified

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