Upgrade from High Sierra to Big Sur fails to install

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Level 1

4 points

Upgrade from High Sierra to Big Sur fails to install

I have a 2017 Mac Book Pro running High Sierra with over 100GB of storage space available. I'm trying to upgrade to Big Sur.

I go into the App Store and select "macOS Big Sur" (12GB) and click on download.
It says downloading and then calculating and appears to finish after about 30 seconds and then presents an open button.
I click on the "open" button and the window just flashes but does not do anything.
I've done several reboots but nothing seems to change the behavior. There are not errors or warnings anywhere that I can see.

What am I doing wrong? Thanks in advance.

MacBook Pro 15″, macOS 10.13

Posted on Sep 27, 2021 1:24 PM

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Answer 1

Best reply

HWTech

Level 9

56,162 points

Sep 27, 2021 6:02 PM in response to bvsaker

Try booting into Safe Mode in case you have some third party software installed that is interfering with the normal operation of macOS.

If this does not work, then delete the "Install macOS Big Sur" installer app from the "Applications" folder and empty the Trash. Then try downloading the Big Sur installer again.

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Answer 2

bvsaker Author

Level 1

4 points

Sep 28, 2021 8:15 AM in response to HWTech

As it turns out, I found out that there was corporate software preventing me from upgrading to Big Sur. Thank you for your help!

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Upgrade from High Sierra to Big Sur fails to install

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