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How to update macOS High Sierra to Big Sur

How to update macOS High Sierra to Big Sur

MacBook Pro 13″, macOS 10.13

Posted on May 29, 2021 4:11 AM

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Question marked as Top-ranking reply

Posted on May 29, 2021 4:22 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. Make sure to use Only Safari to commence the download as Other may not work


macOS Big Sur is compatible with these computers if your computer appears on this list - it Qualifies for Big

Sur


How to upgrade to macOS Big Sur


User Tip for upgrading to Big Sur


Make a Time Machine Backup Before attempting. Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina and Big Sur Only support 64 bit and there is not workaround.


Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs 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.

1 reply
Question marked as Top-ranking reply

May 29, 2021 4:22 AM in response to sandy_ptc

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. Make sure to use Only Safari to commence the download as Other may not work


macOS Big Sur is compatible with these computers if your computer appears on this list - it Qualifies for Big

Sur


How to upgrade to macOS Big Sur


User Tip for upgrading to Big Sur


Make a Time Machine Backup Before attempting. Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina and Big Sur Only support 64 bit and there is not workaround.


Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs 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.

How to update macOS High Sierra to Big Sur

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