You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Updating OS to newer OS

I am using OS High Sierra, what is the best OS to update to. iMac (Retina 5K, 27-inch, 2017) is my current IMAC

Posted on Dec 12, 2021 2:45 PM

Reply
Question marked as Top-ranking reply

Posted on Dec 12, 2021 2:51 PM

Back up your data, check your applications for compatibility, and depending on what the site lists, click on Mojave, Catalina, Big Sur, or Monterey. You may need to wait for Apple to fix an issue on the App Store servers before the Mojave through Big Sur links will work.


(209715)

2 replies

Dec 12, 2021 4:19 PM in response to Help please99

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


Tips Big Sir Upgrade Released Nov 2020. Be sure to observe the Empty Space Requirements


Tips Monterey Upgrade  Released Oct 25, 202. Be sure to observe the Empty Space Requirements


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

Updating OS to newer OS

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.