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Can I still upgrade to Big Sur from Mojave?

I've been putting it off during the pandemic, but I'm finally determined to upgrade from Mojave to Big Sur. The update is no longer available in the App Store. I am nervous about going all the way to Monterey from 10.14.6. I may still have inactive 32-bit stuff on my 2017 iMac. What's your advice?

iMac 27″ 5K, macOS 10.14

Posted on Jan 4, 2022 12:20 PM

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Question marked as Top-ranking reply

Posted on Jan 5, 2022 7:30 AM

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.


With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install.  For Best results use Safari to commence the download as Others may not work.


Safari will open a redirect and open the Apple Store where the download can commence


There have been some reports that jumping from Mojave and bypassing the earlier versions of macOS has caused some ( not ALL ) users problematic issues and or failures to upGrade to Big Sur or Monterey


Tips Big Sir Upgrade Released Nov 2020


Tips Monterey Upgrade  Released Oct 25, 2021


Make Time Machine Backup  is very useful and can be used to Revert to Previous Working macOS


Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina, Big Sur & Monterey supports only 64 bit and there is no workaround.


Suggest using Go64 to find 32 bit application before attempting the upGrade. Some or many of the Application already installed may required update or upGrades to 64 Bit Versions.


Are there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal  operation of the OS and may even Corrupt the OS requiring a Reinstallation

6 replies
Question marked as Top-ranking reply

Jan 5, 2022 7:30 AM in response to csut703

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.


With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install.  For Best results use Safari to commence the download as Others may not work.


Safari will open a redirect and open the Apple Store where the download can commence


There have been some reports that jumping from Mojave and bypassing the earlier versions of macOS has caused some ( not ALL ) users problematic issues and or failures to upGrade to Big Sur or Monterey


Tips Big Sir Upgrade Released Nov 2020


Tips Monterey Upgrade  Released Oct 25, 2021


Make Time Machine Backup  is very useful and can be used to Revert to Previous Working macOS


Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina, Big Sur & Monterey supports only 64 bit and there is no workaround.


Suggest using Go64 to find 32 bit application before attempting the upGrade. Some or many of the Application already installed may required update or upGrades to 64 Bit Versions.


Are there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal  operation of the OS and may even Corrupt the OS requiring a Reinstallation

Can I still upgrade to Big Sur from Mojave?

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