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Big Sur 11.1 Update Issue

I experienced Big Sur 11.1 update issue on my MacBook Pro 2019. The update can not be completed because there is an error occurred while downloading some files. I have checked my connection and actually, it was okay (9 Mbps for download). Does anyone experience this issue? Please help.

MacBook Pro 13″, macOS 11.0

Posted on Dec 15, 2020 6:18 PM

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Posted on Dec 16, 2020 10:23 PM

I had the same issue, It was frustrating; however, the solution is easy. It appears the my Antivirus app (Kaspersky) is causing the trouble, where I was activating the WebCam Block feature, it was somehow blocking the access of the update to the WebCam and preventing it from continuing.


The Solution is to quit the Antivirus app ad download and install the System update and then reactivate the Antivirus app again.

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Question marked as Top-ranking reply

Dec 16, 2020 10:23 PM in response to tamado

I had the same issue, It was frustrating; however, the solution is easy. It appears the my Antivirus app (Kaspersky) is causing the trouble, where I was activating the WebCam Block feature, it was somehow blocking the access of the update to the WebCam and preventing it from continuing.


The Solution is to quit the Antivirus app ad download and install the System update and then reactivate the Antivirus app again.

Big Sur 11.1 Update Issue

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