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.

Sierra Download

Hi, I'm trying to download macOS Sierra on my Imac. For some reason I am unable to mine is an OS X version 10.10.5 purchased in 2013. Any help or suggestions would be much appreciated

Posted on Jan 20, 2022 4:47 PM

Reply
Question marked as Top-ranking reply

Posted on Jan 20, 2022 4:52 PM

Back up your data, check your applications for compatibility, and depending on which iMac model you have, click on El Capitan or Sierra, High Sierra, Mojave, or Catalina; if you bought it new then, it can run any of those. If you encounter a specific issue, describe it in this thread.


Catalina and newer won't run 32-bit software; download and use Go64 to scan for it. To check other programs, click here and look them up.


(212524)

2 replies
Question marked as Top-ranking reply

Jan 20, 2022 4:52 PM in response to NZ_1819

Back up your data, check your applications for compatibility, and depending on which iMac model you have, click on El Capitan or Sierra, High Sierra, Mojave, or Catalina; if you bought it new then, it can run any of those. If you encounter a specific issue, describe it in this thread.


Catalina and newer won't run 32-bit software; download and use Go64 to scan for it. To check other programs, click here and look them up.


(212524)

Jan 21, 2022 2:01 AM in response to NZ_1819

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


macOS Sierra 


macOS High Sierra


macOS Mojave


macOS Catalina is compatible with these computers


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

Sierra Download

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