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mac not updating os software

I have an iMac 21.5 in late 2015 running macOS Big Sur 11.6.5. It will not update os software. I have left it overnight looking for updates and it just gives me the wheel of death hours later. I see that there are updates since then, but I can't get them. Any suggestions will be greatly appreciated.

iMac, macOS 10.12

Posted on Apr 29, 2023 8:02 AM

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Posted on Apr 29, 2023 8:19 AM

A Late 2015 iMac can run macOS Monterey.


Try Updating the iMac in Safe Mode.

see > If an error occurred while updating or installing macOS - Apple Support


Or click on Monterey 12 in the following link.

see > How to download macOS - Apple Support

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mac not updating os software

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